G.f.: A(x) = exp( Sum_{n>=1} (1 + 2^n*x*A(x))^n * x^n/n ).
A158053
G.f.: A(x) = exp( Sum_{n>=1} (1 + 2^n*x*A(x))^n * x^n/n ).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =9a(4) =37a(5) =183a(6) =1175a(7) =10405a(8) =132911a(9) =2533697a(10) =70988149a(11) =2886198771a(12) =168860266189
External references
- oeis: A158053