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 A384680.

A384681

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 A384680.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =0a(6) =1a(7) =2a(8) =3a(9) =0a(10) =1a(11) =3a(12) =7a(13) =15a(14) =0a(15) =1a(16) =4a(17) =12a(18) =36a(19) =100a(20) =0a(21) =1a(22) =5a(23) =18a(24) =64a(25) =239a(26) =805a(27) =0a(28) =1a(29) =6

External references