E.g.f. A(x) satisfies A(x) = 1 - log(1 - x^2*A(x)^2) / x.
A213641
E.g.f. A(x) satisfies A(x) = 1 - log(1 - x^2*A(x)^2) / x.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =33a(4) =408a(5) =6760a(6) =140880a(7) =3543120a(8) =104469120a(9) =3535037856a(10) =135053291520
External references
- oeis: A213641