G.f. A(x) satisfies A(x) = 1/(1 - x/(1 - x*A(x)^3)^2).
A391649
G.f. A(x) satisfies A(x) = 1/(1 - x/(1 - x*A(x)^3)^2).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =14a(4) =75a(5) =438a(6) =2704a(7) =17356a(8) =114661a(9) =774514a(10) =5324812a(11) =37137379a(12) =262112002a(13) =1868610856a(14) =13436074970a(15) =97328988039a(16) =709609323325
External references
- oeis: A391649