Triangle T(n,k) counts rooted hypertrees on n vertices with k hyperedges, n>=2, k>=1.
2, 3, 9, 4, 48, 64, 5, 175, 750, 625, 6, 540, 5400, 12960, 7776, 7, 1519, 30870
2 seqfan posts
Sat Jun 30 08:15:43 CEST 2012 [seqfan] Re: Likely error in A210586.