Number of ways to partition the multiset consisting of 3 copies each of 1, 2, ..., n into n sets of size 3.

A254243

Number of ways to partition the multiset consisting of 3 copies each of 1, 2, ..., n into n sets of size 3.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =10a(4) =93a(5) =1417a(6) =32152a(7) =1016489a(8) =42737945a(9) =2307295021a(10) =155607773014

External references