G.f.: A(x) = G(G(x)) = G(x)*[1 + A(A(x))] where G(x) = x + x*G(G(G(x))) = g.f. of A091713.
A141117
G.f.: A(x) = G(G(x)) = G(x)*[1 + A(A(x))] where G(x) = x + x*G(G(G(x))) = g.f. of A091713.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =46a(4) =330a(5) =2756a(6) =25782a(7) =263866a(8) =2909092a(9) =34181138a(10) =424730866a(11) =5549236120a(12) =75895955810
External references
- oeis: A141117