Nonzero coefficients of g.f.: A(x) = G(G(x)) where G(x) = x + G(G(x))^3 is the g.f. of A153851.
A153852
Nonzero coefficients of g.f.: A(x) = G(G(x)) where G(x) = x + G(G(x))^3 is the g.f. of A153851.
Terms
- a(0) =1a(1) =2a(2) =15a(3) =165a(4) =2213a(5) =33693a(6) =561867a(7) =10053141a(8) =190489374a(9) =3788856192a(10) =78613758564
External references
- oeis: A153852