231704

Appears in sequences

• G.f. A(x) satisfies: 1 - x = Sum_{n>=0} (x^(3*n) + (-1)^n*A(x))^n.at n=22A352819
• a(n) = 4^n * [x^n] Product_{k>=1} 1/(1 - 2*x^k)^(1/4).at n=7A370732