Points for the first person who can demonstrate this is possible for ever year from 1900 to 2100.
((1.0x2.0)+3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))-9.0) = 1900
((1.0+2.0)+3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))-9.0) = 1901
((1.0-2.0)-3.0)x(((4.0-(5.0/6.0))-(7.0x8.0))x9.0) = 1902
(1.0+(2.0x3.0))-(4.0x((5.0x6.0)-((7.0x8.0)x9.0))) = 1903
((1.0+2.0)x3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))-9.0) = 1904
((1.0+(2.0+3.0))x(4.0x5.0))x(6.0+((7.0/8.0)+9.0)) = 1905
(1.0x2.0)x(((3.0x4.0)+5.0)+(((6.0+7.0)x8.0)x9.0)) = 1906
((1.0x((2.0+3.0)+4.0))x((5.0x6.0)x7.0))+(8.0+9.0) = 1907
((1.0-2.0)-3.0)x(((4.0+(5.0-6.0))-(7.0x8.0))x9.0) = 1908
((1.0-2.0)-3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1909
((1.0-2.0)x3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1910
(1.0+2.0)x(((3.0x4.0)+((5.0+6.0)x(7.0x8.0)))+9.0) = 1911
((1.0x2.0)-3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1912
((1.0+2.0)-3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1913
((1.0+2.0)/3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1914
((1.0-2.0)+3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1915
1.0x(2.0x((3.0x4.0)x(((5.0/6.0)+7.0)+(8.0x9.0)))) = 1916
((1.0/(2.0+3.0))+((4.0x5.0)-6.0))x((7.0+8.0)x9.0) = 1917
((1.0x2.0)+3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1918
((1.0+2.0)+3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1919
(((1.0x(2.0/(3.0/4.0)))x5.0)x6.0)x((7.0+8.0)+9.0) = 1920
((1.0-2.0)x(3.0-(4.0x5.0)))x(((6.0+7.0)x8.0)+9.0) = 1921
((1.0+2.0)x3.0)+(((4.0+(5.0x6.0))x(7.0x8.0))+9.0) = 1922
(((1.0x2.0)+(3.0/(4.0/5.0)))x(6.0x(7.0x8.0)))-9.0 = 1923
((1.0+((2.0x3.0)x4.0))x((5.0+6.0)x7.0))+(8.0-9.0) = 1924
(1.0-2.0)+((((3.0x4.0)+(5.0x(6.0x7.0)))-8.0)x9.0) = 1925
(1.0+(2.0+(((3.0/4.0)+5.0)x((6.0x7.0)x8.0))))-9.0 = 1926
((1.0-2.0)+(((3.0x4.0)-5.0)x6.0))x((7.0x8.0)-9.0) = 1927
(1.0x2.0)+((((3.0x4.0)+(5.0x(6.0x7.0)))-8.0)x9.0) = 1928
(1.0+2.0)+((((3.0x4.0)+(5.0x(6.0x7.0)))-8.0)x9.0) = 1929
((1.0+2.0)+(3.0+4.0))x((5.0x(6.0x7.0))-(8.0+9.0)) = 1930
((1.0x2.0)x((3.0+(4.0x5.0))x(6.0x7.0)))+(8.0-9.0) = 1931
((1.0x2.0)+(3.0x4.0))x((5.0x(6.0x7.0))-(8.0x9.0)) = 1932
1.0+((((2.0/3.0)-4.0)+((5.0x(6.0x7.0))+8.0))x9.0) = 1933
((1.0+2.0)x3.0)x((4.0+(5.0x(6.0x7.0)))+(8.0/9.0)) = 1934
((1.0x2.0)+3.0)x(((4.0x(5.0+6.0))+(7.0-8.0))x9.0) = 1935
(1.0+(((2.0x3.0)x4.0)x5.0))x((6.0-7.0)+(8.0+9.0)) = 1936
((1.0-2.0)-(3.0x4.0))+((5.0x6.0)x((7.0x8.0)+9.0)) = 1937
(1.0+(2.0x((3.0+4.0)/5.0)))x(6.0+(7.0x(8.0x9.0))) = 1938
1.0-((2.0x3.0)-((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1939
1.0-((2.0+3.0)-((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1940
(((1.0x2.0)+(3.0/(4.0/5.0)))x(6.0x(7.0x8.0)))+9.0 = 1941
((1.0+((2.0x3.0)x4.0))x((5.0+6.0)x7.0))+(8.0+9.0) = 1942
1.0x((2.0-3.0)+((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1943
((1.0+2.0)x3.0)x(((4.0+(5.0+6.0))x(7.0+8.0))-9.0) = 1944
1.0-((2.0-3.0)x((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1945
1.0-((2.0-3.0)-((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1946
(1.0-(2.0x((3.0x4.0)+5.0)))x(6.0+(7.0-(8.0x9.0))) = 1947
((1.0-2.0)+3.0)-(4.0-((5.0x6.0)x((7.0x8.0)+9.0))) = 1948
1.0x((2.0+3.0)+((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1949
1.0+((2.0+3.0)+((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1950
1.0+((2.0x3.0)+((4.0+((5.0x6.0)-7.0))x(8.0x9.0))) = 1951
(1.0x2.0)+((((3.0-4.0)x5.0)x6.0)x(7.0-(8.0x9.0))) = 1952
(((1.0/2.0)x((3.0/4.0)-5.0))+6.0)x(7.0x(8.0x9.0)) = 1953
(1.0-((2.0+3.0)+4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1954
(1.0x2.0)+((((3.0-4.0)+(5.0x(6.0x7.0)))+8.0)x9.0) = 1955
(1.0+2.0)+((((3.0-4.0)+(5.0x(6.0x7.0)))+8.0)x9.0) = 1956
(1.0x((2.0-3.0)-4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1957
(1.0/((2.0-3.0)/4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1958
(1.0+((2.0-3.0)x4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1959
((1.0+(2.0x3.0))x(4.0x5.0))x((6.0+7.0)-(8.0-9.0)) = 1960
(1.0-2.0)-((((3.0-4.0)x(5.0x(6.0x7.0)))-8.0)x9.0) = 1961
((1.0x2.0)/(3.0/(4.0+5.0)))x(((6.0x7.0)x8.0)-9.0) = 1962
(1.0/((2.0+3.0)-4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1963
(1.0x2.0)-((((3.0-4.0)x(5.0x(6.0x7.0)))-8.0)x9.0) = 1964
(1.0+2.0)-((((3.0-4.0)x(5.0x(6.0x7.0)))-8.0)x9.0) = 1965
(1.0+((2.0-3.0)+4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1966
((((1.0+(2.0+3.0))x4.0)-5.0)x((6.0+7.0)x8.0))-9.0 = 1967
1.0x((2.0/3.0)x((4.0+((5.0x6.0)+7.0))x(8.0x9.0))) = 1968
1.0+((2.0/3.0)x((4.0+((5.0x6.0)+7.0))x(8.0x9.0))) = 1969
(1.0-2.0)-((((3.0-4.0)-(5.0x(6.0x7.0)))-8.0)x9.0) = 1970
((((1.0+2.0)x3.0)x4.0)x((5.0-6.0)+(7.0x8.0)))-9.0 = 1971
(1.0+((2.0+3.0)+4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1972
(1.0x2.0)-((((3.0-4.0)-(5.0x(6.0x7.0)))-8.0)x9.0) = 1973
(((1.0+(2.0+(3.0-4.0)))+5.0)x6.0)x((7.0x8.0)-9.0) = 1974
(((1.0x2.0)+((3.0x4.0)+5.0))+6.0)x(7.0+(8.0x9.0)) = 1975
1.0-((2.0+3.0)-(4.0x(((5.0-6.0)+(7.0x8.0))x9.0))) = 1976
((1.0x2.0)+3.0)-(4.0x((5.0+6.0)-((7.0x8.0)x9.0))) = 1977
(1.0+(((2.0+3.0)+4.0)x5.0))x((6.0x7.0)-(8.0-9.0)) = 1978
1.0x((2.0-3.0)+(4.0x(((5.0-6.0)+(7.0x8.0))x9.0))) = 1979
((((1.0+2.0)-3.0)+4.0)x((5.0-6.0)+(7.0x8.0)))x9.0 = 1980
1.0-(((((2.0+3.0)x4.0)x(5.0+6.0))/(7.0-8.0))x9.0) = 1981
(1.0x((2.0+3.0)x4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1982
(1.0+((2.0+3.0)x4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1983
(1.0-(2.0x3.0))+(((4.0+5.0)x(6.0+7.0))x(8.0+9.0)) = 1984
((((1.0+(2.0+3.0))x4.0)-5.0)x((6.0+7.0)x8.0))+9.0 = 1985
((((1.0+2.0)-3.0)-4.0)x((5.0/6.0)-(7.0x8.0)))x9.0 = 1986
(1.0+((2.0x3.0)x4.0))+(((5.0x(6.0x7.0))+8.0)x9.0) = 1987
1.0-((2.0-3.0)+(4.0x(((5.0/6.0)-(7.0x8.0))x9.0))) = 1988
((((1.0+2.0)x3.0)x4.0)x((5.0-6.0)+(7.0x8.0)))+9.0 = 1989
1.0+(((((2.0+3.0)x4.0)x(5.0+6.0))-(7.0-8.0))x9.0) = 1990
((((1.0-(2.0-3.0))x4.0)x5.0)x((6.0x7.0)+8.0))-9.0 = 1991
(1.0+(2.0-((3.0x4.0)-5.0)))x(6.0-(7.0x(8.0x9.0))) = 1992
1.0+((2.0x3.0)-(4.0x(((5.0/6.0)-(7.0x8.0))x9.0))) = 1993
(1.0x(2.0+3.0))+(((4.0+5.0)x(6.0+7.0))x(8.0+9.0)) = 1994
((1.0/2.0)x(3.0+4.0))x(5.0x((6.0x7.0)+(8.0x9.0))) = 1995
(1.0-(2.0+3.0))x(((4.0-5.0)+6.0)-((7.0x8.0)x9.0)) = 1996
(1.0-2.0)-((((3.0/4.0)x(5.0-(6.0x7.0)))x8.0)x9.0) = 1997
((1.0-2.0)x(3.0/4.0))x((5.0-(6.0x7.0))x(8.0x9.0)) = 1998
1.0-((((2.0-3.0)x4.0)-((5.0x(6.0x7.0))+8.0))x9.0) = 1999
(1.0-(2.0-((3.0x4.0)+5.0)))x(6.0+(7.0x(8.0+9.0))) = 2000
(1.0+2.0)-((((3.0/4.0)x(5.0-(6.0x7.0)))x8.0)x9.0) = 2001
((1.0/((2.0+3.0)/4.0))+(5.0x6.0))x((7.0x8.0)+9.0) = 2002
((1.0x2.0)+3.0)+((4.0+((5.0x(6.0x7.0))+8.0))x9.0) = 2003
((1.0x((2.0+3.0)x4.0))+((5.0/6.0)+7.0))x(8.0x9.0) = 2004
1.0+((((2.0/3.0)+4.0)+((5.0x(6.0x7.0))+8.0))x9.0) = 2005
(1.0-(2.0+(((3.0-4.0)-5.0)x((6.0x7.0)x8.0))))-9.0 = 2006
(((1.0x2.0)/(3.0/(4.0+5.0)))x(6.0x(7.0x8.0)))-9.0 = 2007
1.0-((((2.0-3.0)-4.0)-((5.0x(6.0x7.0))+8.0))x9.0) = 2008
((((1.0-(2.0-3.0))x4.0)x5.0)x((6.0x7.0)+8.0))+9.0 = 2009
(1.0+(2.0-(((3.0-4.0)-5.0)x((6.0x7.0)x8.0))))-9.0 = 2010
1.0-((2.0x3.0)+((4.0x((5.0-6.0)x7.0))x(8.0x9.0))) = 2011
((1.0-2.0)-3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2012
((1.0-2.0)x3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2013
((1.0-2.0)+3.0)+(4.0x((5.0-6.0)+((7.0x8.0)x9.0))) = 2014
((1.0x2.0)-3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2015
((1.0+2.0)-3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2016
((1.0+2.0)/3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2017
((1.0-2.0)+3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2018
(1.0+2.0)-((((3.0+4.0)-5.0)-6.0)x(7.0x(8.0x9.0))) = 2019
(1.0-(2.0x3.0))+(((4.0+5.0)+6.0)x((7.0+8.0)x9.0)) = 2020
((1.0x2.0)+3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2021
((1.0+2.0)+3.0)-(((4.0/(5.0-6.0))x(7.0x8.0))x9.0) = 2022
1.0+((2.0x3.0)-((4.0x((5.0-6.0)x7.0))x(8.0x9.0))) = 2023
((1.0x2.0)-3.0)+(((4.0+(5.0+6.0))x(7.0+8.0))x9.0) = 2024
((1.0-2.0)+3.0)/(((4.0/(5.0x6.0))/(7.0+8.0))/9.0) = 2025
((1.0+2.0)/3.0)+(((4.0+(5.0+6.0))x(7.0+8.0))x9.0) = 2026
((1.0-2.0)+3.0)+(((4.0+(5.0+6.0))x(7.0+8.0))x9.0) = 2027
(1.0+2.0)+((((3.0+4.0)+(5.0x(6.0x7.0)))+8.0)x9.0) = 2028
(1.0-((2.0-(3.0x4.0))x((5.0x6.0)x7.0)))-(8.0x9.0) = 2029
((1.0x2.0)+3.0)+(((4.0+(5.0+6.0))x(7.0+8.0))x9.0) = 2030
((1.0+2.0)+3.0)+(((4.0+(5.0+6.0))x(7.0+8.0))x9.0) = 2031
(1.0+(2.0x3.0))+(((4.0+5.0)+6.0)x((7.0+8.0)x9.0)) = 2032
(1.0x(2.0+(((3.0x4.0)x5.0)x((6.0x7.0)-8.0))))-9.0 = 2033
((1.0+2.0)x3.0)+(((4.0+(5.0+6.0))x(7.0+8.0))x9.0) = 2034
1.0+((((2.0x3.0)x4.0)+((5.0x(6.0x7.0))-8.0))x9.0) = 2035
((1.0-2.0)-3.0)x(4.0-(((5.0x(6.0+7.0))-8.0)x9.0)) = 2036
((((1.0+2.0)x3.0)x4.0)x((5.0/6.0)+(7.0x8.0)))-9.0 = 2037
(1.0-((2.0-((3.0+4.0)x5.0))x(6.0+(7.0x8.0))))-9.0 = 2038
(1.0-2.0)+((3.0-(4.0-5.0))x(6.0+(7.0x(8.0x9.0)))) = 2039
1.0x((2.0+3.0)x((4.0x((5.0-6.0)+7.0))x(8.0+9.0))) = 2040
1.0+((2.0+3.0)x((4.0x((5.0-6.0)+7.0))x(8.0+9.0))) = 2041
1.0-((2.0+3.0)-(4.0x(((5.0/6.0)+(7.0x8.0))x9.0))) = 2042
((1.0x2.0)+(3.0+4.0))x((5.0x(6.0x7.0))+(8.0+9.0)) = 2043
(1.0-(((2.0x3.0)x4.0)+5.0))x((6.0-7.0)-(8.0x9.0)) = 2044
1.0x((2.0-3.0)+(4.0x(((5.0/6.0)+(7.0x8.0))x9.0))) = 2045
((((1.0+2.0)-3.0)+4.0)x((5.0/6.0)+(7.0x8.0)))x9.0 = 2046
1.0-((2.0x3.0)+(4.0x(((5.0-6.0)-(7.0x8.0))x9.0))) = 2047
(1.0-(2.0-(((3.0x4.0)x5.0)x((6.0x7.0)-8.0))))+9.0 = 2048
(1.0-(2.0x3.0))+(((4.0x5.0)+6.0)x(7.0+(8.0x9.0))) = 2049
(1.0x(((2.0x3.0)+4.0)x5.0))x((6.0x7.0)+(8.0-9.0)) = 2050
(1.0x(2.0+(((3.0x4.0)x5.0)x((6.0x7.0)-8.0))))+9.0 = 2051
((((1.0+2.0)-3.0)-4.0)x((5.0-6.0)-(7.0x8.0)))x9.0 = 2052
1.0+((2.0x3.0)+(4.0x(((5.0/6.0)+(7.0x8.0))x9.0))) = 2053
(((1.0+2.0)/((3.0/4.0)/5.0))+6.0)x(7.0+(8.0x9.0)) = 2054
((((1.0+2.0)+3.0)x4.0)x((5.0x6.0)+(7.0x8.0)))-9.0 = 2055
((1.0-2.0)-3.0)+(4.0x((5.0+6.0)+((7.0x8.0)x9.0))) = 2056
1.0x((2.0+3.0)-(4.0x(((5.0-6.0)-(7.0x8.0))x9.0))) = 2057
(1.0-(((2.0x3.0)+4.0)x5.0))x((6.0x7.0)/(8.0-9.0)) = 2058
(1.0x(((2.0x3.0)x4.0)+5.0))x((6.0-7.0)+(8.0x9.0)) = 2059
((1.0+2.0)-3.0)+(4.0x((5.0+6.0)+((7.0x8.0)x9.0))) = 2060
((1.0+(2.0+3.0))x((4.0+5.0)+((6.0x7.0)x8.0)))-9.0 = 2061
(1.0-2.0)-((((3.0+4.0)x(5.0-(6.0x7.0)))x8.0)+9.0) = 2062
(1.0-2.0)x((((3.0+4.0)x(5.0-(6.0x7.0)))x8.0)+9.0) = 2063
((((1.0x2.0)/3.0)x4.0)x((5.0x6.0)+(7.0x8.0)))x9.0 = 2064
((1.0-2.0)x(3.0+4.0))x(5.0x((6.0+7.0)-(8.0x9.0))) = 2065
(1.0+2.0)-((((3.0+4.0)x(5.0-(6.0x7.0)))x8.0)+9.0) = 2066
(1.0x2.0)+(((3.0+4.0)x5.0)x(((6.0x7.0)+8.0)+9.0)) = 2067
(((1.0+(2.0+(3.0+4.0)))x5.0)-6.0)x((7.0x8.0)-9.0) = 2068
(1.0-2.0)+((((3.0x4.0)+(5.0x(6.0x7.0)))+8.0)x9.0) = 2069
1.0x((2.0+3.0)/((4.0/((5.0x6.0)-7.0))/(8.0x9.0))) = 2070
1.0+((2.0+3.0)/((4.0/((5.0x6.0)-7.0))/(8.0x9.0))) = 2071
(1.0x2.0)+((((3.0x4.0)+(5.0x(6.0x7.0)))+8.0)x9.0) = 2072
((((1.0+2.0)+3.0)x4.0)x((5.0x6.0)+(7.0x8.0)))+9.0 = 2073
((1.0+2.0)+3.0)+(4.0x((5.0+6.0)x((7.0x8.0)-9.0))) = 2074
1.0+((2.0x3.0)+((4.0x(5.0+6.0))x((7.0x8.0)-9.0))) = 2075
((1.0+((2.0+3.0)x4.0))+((5.0/6.0)+7.0))x(8.0x9.0) = 2076
((1.0+(2.0+3.0))+((4.0x5.0)x((6.0+7.0)x8.0)))-9.0 = 2077
((1.0+(2.0x3.0))+((4.0x5.0)x((6.0+7.0)x8.0)))-9.0 = 2078
((1.0/2.0)x3.0)/(((4.0/(5.0+6.0))/(7.0x8.0))/9.0) = 2079
1.0+((2.0x3.0)x((4.0x((5.0+6.0)x7.0))/(8.0/9.0))) = 2080
(1.0-2.0)x((((3.0+4.0)x(5.0-(6.0x7.0)))x8.0)-9.0) = 2081
(1.0x2.0)x(((3.0x4.0)x((5.0x6.0)+(7.0x8.0)))+9.0) = 2082
(1.0x2.0)-((((3.0+4.0)x(5.0-(6.0x7.0)))x8.0)-9.0) = 2083
(1.0+2.0)-((((3.0+4.0)x(5.0-(6.0x7.0)))x8.0)-9.0) = 2084
((1.0-(2.0+3.0))+((4.0x5.0)x((6.0+7.0)x8.0)))+9.0 = 2085
1.0x(2.0x((3.0+4.0)x(((5.0+6.0)x7.0)+(8.0x9.0)))) = 2086
(1.0-2.0)+((((3.0+4.0)x(5.0-(6.0/7.0)))x8.0)x9.0) = 2087
((((1.0-2.0)+3.0)x4.0)x((5.0x6.0)+(7.0-8.0)))x9.0 = 2088
((((1.0+(2.0-3.0))+4.0)x5.0)x((6.0+7.0)x8.0))+9.0 = 2089
((1.0+2.0)+(3.0+4.0))x((5.0x(6.0x7.0))+(8.0-9.0)) = 2090
((((1.0x2.0)/3.0)+4.0)x((5.0x6.0)x(7.0+8.0)))-9.0 = 2091
1.0+(((((2.0/3.0)+4.0)x(5.0x6.0))x(7.0+8.0))-9.0) = 2092
((1.0/2.0)-(3.0+4.0))x((5.0-(6.0x(7.0x8.0)))+9.0) = 2093
((1.0x(2.0+3.0))+((4.0x5.0)x((6.0+7.0)x8.0)))+9.0 = 2094
((1.0/2.0)-(((3.0+4.0)x5.0)x6.0))x((7.0-8.0)-9.0) = 2095
((1.0+(2.0x3.0))+((4.0x5.0)x((6.0+7.0)x8.0)))+9.0 = 2096
((((1.0-2.0)+3.0)x4.0)x((5.0x6.0)-(7.0/8.0)))x9.0 = 2097
((1.0+2.0)+((3.0+((4.0x5.0)x(6.0+7.0)))x8.0))-9.0 = 2098
(1.0-2.0)-((((3.0+4.0)x5.0)x6.0)x(7.0-(8.0+9.0))) = 2099
((1.0x2.0)-(3.0x4.0))x((5.0x(6.0x7.0))/(8.0-9.0)) = 2100
According to my brute-forcer, you can get everything from 0 to 2283 but not 2284. The first few missing numbers are 2284, 2758, 2812, 2902, 2932, 3076, 3119, 3137, 3208. The first gap of more than one number is that you can't do either 3802 or 3803. The first gap of >= 3 numbers is 4280-4282. The total number of different achievable nonnegative integers is 14026. The biggest two are 9! and (3/2)x9!, unsurprisingly.
It's at http://pastie.org/767276 in case anyone cares.