A255952 Number of collections of nonempty multisets with a total of n+2 objects of exactly n colors.

0, 3, 23, 141, 848, 5190, 32835, 216006, 1480524, 10574613, 78652940, 608539283, 4891327374, 40788987473, 352412667201, 3150522213345, 29106469066976, 277557448176080, 2728859399410797, 27631899836521084, 287875667322386270, 3082851976122478749

Offset

0,2

Links

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

Formula

a(n) = A255903(n+2,n).

Crossrefs

A diagonal of A255903.

Sequence in context: A049164 A081413 A179328 * A089950 A198797 A057835

Adjacent sequences: A255949 A255950 A255951 * A255953 A255954 A255955

Keyword

nonn

Author

Alois P. Heinz, Mar 11 2015

Status

approved