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A255951
Number of collections of nonempty multisets with a total of n+1 objects of exactly n colors.
3
0, 2, 8, 33, 144, 675, 3396, 18270, 104656, 635679, 4078460, 27544781, 195219624, 1447922814, 11210516128, 90405000105, 757823763968, 6591085453935, 59379154929180, 553270283842586, 5324267165971800, 52849751984814183, 540469505506572620, 5688102295215875017
OFFSET
0,2
LINKS
FORMULA
a(n) = A255903(n+1,n).
CROSSREFS
A diagonal of A255903.
Sequence in context: A150865 A150866 A150867 * A150868 A150869 A150870
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Mar 11 2015
STATUS
approved