Nonzero coefficients of g.f.: A(x) = G(G(G(G(x)))) where G(x) = x + G(G(x))^3 is the g.f. of A153851.
A153854
Nonzero coefficients of g.f.: A(x) = G(G(G(G(x)))) where G(x) = x + G(G(x))^3 is the g.f. of A153851.
Terms
- a(0) =1a(1) =4a(2) =42a(3) =594a(4) =9827a(5) =179928a(6) =3545637a(7) =73988631a(8) =1618178067a(9) =36832568283a(10) =868184365137
External references
- oeis: A153854