G.f. A(x) satisfies: 3*x = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.
A355353
G.f. A(x) satisfies: 3*x = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.
Terms
- a(0) =1a(1) =3a(2) =18a(3) =108a(4) =660a(5) =4275a(6) =29106a(7) =205377a(8) =1485279a(9) =10943424a(10) =81866493a(11) =620316297a(12) =4751289063a(13) =36727782675a(14) =286153810542
External references
- oeis: A355353