G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^((n+2)^2).
A215242
G.f.: 1 = Sum_{n>=0} a(n)*x^n/(1+x)^((n+2)^2).
Terms
- a(0) =1a(1) =4a(2) =26a(3) =256a(4) =3489a(5) =61696a(6) =1352518a(7) =35566368a(8) =1094499820a(9) =38670814348
External references
- oeis: A215242