G.f. satisfies: A(x)^2 = A( x^2/(1-12*x)^2 ).

A264233

G.f. satisfies: A(x)^2 = A( x^2/(1-12*x)^2 ).

Terms

    a(0) =1a(1) =12a(2) =150a(3) =1944a(4) =25977a(5) =355932a(6) =4975974a(7) =70684920a(8) =1016911392a(9) =14778827136a(10) =216547264296

External references