G.f. satisfies: A(x) = x*exp( Sum_{n>=1} A(2^n*x^n) / n ).
A229901
G.f. satisfies: A(x) = x*exp( Sum_{n>=1} A(2^n*x^n) / n ).
Terms
- a(0) =1a(1) =2a(2) =12a(3) =120a(4) =2208a(5) =75840a(6) =5026048a(7) =654140416a(8) =168815832320
External references
- oeis: A229901