E.g.f. A(x) satisfies A(x) = 1 + log(1 + x^2*A(x)^2)/x.
A218653
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) =27a(4) =264a(5) =3400a(6) =54480a(7) =1045800a(8) =23412480a(9) =599157216a(10) =17258814720a(11) =552733695360
External references
- oeis: A218653