G.f. satisfies: A(x) = (1 + x*A(x)^3) * (1 + x^2*A(x)^5).
A211249
G.f. satisfies: A(x) = (1 + x*A(x)^3) * (1 + x^2*A(x)^5).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =21a(4) =126a(5) =819a(6) =5611a(7) =39900a(8) =291719a(9) =2179181a(10) =16560175a(11) =127617168a(12) =994951887a(13) =7833555324a(14) =62196300997a(15) =497425570173
External references
- oeis: A211249