G.f. A(x) = Sum_{n>=0} a(n)*x^n where a(n) = Sum_{k=0..n-1} ( ([x^k] A(x)^n) (mod 2^n) ) for n > 0, with a(0) = 1.

A376231

G.f. A(x) = Sum_{n>=0} a(n)*x^n where a(n) = Sum_{k=0..n-1} ( ([x^k] A(x)^n) (mod 2^n) ) for n > 0, with a(0) = 1.