G.f.: 1 / AGM(1-12*x, sqrt((1-4*x)*(1-36*x))).

A246876

G.f.: 1 / AGM(1-12*x, sqrt((1-4*x)*(1-36*x))).

Terms

    a(0) =1a(1) =16a(2) =324a(3) =7744a(4) =206116a(5) =5875776a(6) =175191696a(7) =5386385664a(8) =169300977444

External references