G.f. satisfies: A(x) = (1 + x*A(x)^3) * (1 + x^2*A(x)^6).
A200731
G.f. satisfies: A(x) = (1 + x*A(x)^3) * (1 + x^2*A(x)^6).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =22a(4) =139a(5) =953a(6) =6894a(7) =51796a(8) =400269a(9) =3161262a(10) =25403536a(11) =207043048a(12) =1707345547a(13) =14219399626a(14) =119431172630
External references
- oeis: A200731