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 A381570.

A381569

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 A381570.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =3a(5) =0a(6) =1a(7) =6a(8) =12a(9) =0a(10) =1a(11) =9a(12) =33a(13) =82a(14) =0a(15) =1a(16) =12a(17) =63a(18) =236a(19) =732a(20) =0a(21) =1a(22) =15a(23) =102a(24) =489a(25) =2100a(26) =7944a(27) =0a(28) =1a(29) =18

External references