Regular subtriangle of A328773: T(n,k) is the number of the balanced colored digraphs on n nodes with k colors, 1 <= k <= n.

A330693

Regular subtriangle of A328773: T(n,k) is the number of the balanced colored digraphs on n nodes with k colors, 1 <= k <= n.

Terms

    a(0) =1a(1) =3a(2) =4a(3) =16a(4) =36a(5) =64a(6) =218a(7) =1104a(8) =2112a(9) =4096a(10) =9608a(11) =90416a(12) =266496a(13) =528384a(14) =1048576a(15) =1540944a(16) =30194176a(17) =135032832a(18) =269500416a(19) =537919488a(20) =1073741824

External references