G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(2*x^k) * x^k/k ).
A363425
G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(2*x^k) * x^k/k ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =10a(4) =89a(5) =1521a(6) =50300a(7) =3271556a(8) =422093896a(9) =108481853032
External references
- oeis: A363425