G.f. A(x) satisfies: 1 + 2 * Sum_{n>=1} A(x)^(n*(n+1)/2) * x^n = Sum_{n>=0} (1 + x*A(x)^n)^n * x^n.
A326089
G.f. A(x) satisfies: 1 + 2 * Sum_{n>=1} A(x)^(n*(n+1)/2) * x^n = Sum_{n>=0} (1 + x*A(x)^n)^n * x^n.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =90a(4) =1002a(5) =12422a(6) =164866a(7) =2294842a(8) =33092066a(9) =490458214a(10) =7430814938a(11) =114644436410
External references
- oeis: A326089