G.f. A(x) satisfies A(x) = 1/(1 - x/(1 - x*A(x)^4)^3).
A391651
G.f. A(x) satisfies A(x) = 1/(1 - x/(1 - x*A(x)^4)^3).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =25a(4) =179a(5) =1401a(6) =11599a(7) =99892a(8) =885728a(9) =8031766a(10) =74139566a(11) =694337159a(12) =6581077628a(13) =63009948015a(14) =608507552940
External references
- oeis: A391651