A255951 Number of collections of nonempty multisets with a total of n+1 objects of exactly n colors.

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

Alois P. Heinz, Table of n, a(n) for n = 0..250

Formula

a(n) = A255903(n+1,n).

Crossrefs

A diagonal of A255903.

Sequence in context: A150865 A150866 A150867 * A150868 A150869 A150870

Adjacent sequences: A255948 A255949 A255950 * A255952 A255953 A255954

Keyword

nonn

Author

Alois P. Heinz, Mar 11 2015

Status

approved