G.f. A(x) satisfies A(x) = Sum_{n=-oo..+oo} x^(n^2) * (A(x) - x^n)^n/(1 - x^n*A(x))^n.
A380060
G.f. A(x) satisfies A(x) = Sum_{n=-oo..+oo} x^(n^2) * (A(x) - x^n)^n/(1 - x^n*A(x))^n.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =16a(4) =66a(5) =284a(6) =1256a(7) =5752a(8) =26944a(9) =128538a(10) =622560a(11) =3053224a(12) =15132720a(13) =75679956a(14) =381430176a(15) =1935464936a(16) =9879523418a(17) =50695803612a(18) =261364074484
External references
- oeis: A380060