Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of g.f. x/(1 - A002203(k)*x + (-1)^k*x^2).

A383742

Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of g.f. x/(1 - A002203(k)*x + (-1)^k*x^2).

Terms

    a(0) =0a(1) =0a(2) =1a(3) =0a(4) =1a(5) =2a(6) =0a(7) =1a(8) =2a(9) =3a(10) =0a(11) =1a(12) =6a(13) =5a(14) =4a(15) =0a(16) =1a(17) =14a(18) =35a(19) =12a(20) =5a(21) =0a(22) =1a(23) =34a(24) =197a(25) =204a(26) =29a(27) =6a(28) =0a(29) =1

External references