Number of set partitions of [9*n] such that within each block the numbers of elements from all residue classes modulo 9 are equal.

A275098

Number of set partitions of [9*n] such that within each block the numbers of elements from all residue classes modulo 9 are equal.

Terms

    a(0) =1a(1) =1a(2) =257a(3) =1699300a(4) =112660505345

External references