a(n) = coefficient of x^n in power series A(x) such that: 0 = Sum_{n>=0} (-1)^n * x^(n*(n-1)/2) * A(x)^(n*(n+1)/2).
A357233
a(n) = coefficient of x^n in power series A(x) such that: 0 = Sum_{n>=0} (-1)^n * x^(n*(n-1)/2) * A(x)^(n*(n+1)/2).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =11a(4) =46a(5) =207a(6) =980a(7) =4810a(8) =24258a(9) =124951a(10) =654587a(11) =3476985a(12) =18682885a(13) =101372340a(14) =554655435a(15) =3056823864a(16) =16953795008a(17) =94555853982a(18) =529986289496
External references
- oeis: A357233