Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381574.

A381573

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381574.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =3a(5) =0a(6) =1a(7) =6a(8) =15a(9) =0a(10) =1a(11) =9a(12) =39a(13) =118a(14) =0a(15) =1a(16) =12a(17) =72a(18) =326a(19) =1206a(20) =0a(21) =1a(22) =15a(23) =114a(24) =651a(25) =3345a(26) =14712a(27) =0a(28) =1a(29) =18

External references