248073

Appears in sequences

• G.f. satisfies: A(x) = (1 - 3*x*A(x))^2 * (4*A(x) - 3).at n=6A231616
• G.f. A(x) satisfies A(x) = 1/(1 - x/(1 - x*A(x)^4)^2).at n=8A391650