E.g.f. satisfies: A(x) = x - log(1 - A(x)^2).
A213640
E.g.f. satisfies: A(x) = x - log(1 - A(x)^2).
Terms
- a(0) =1a(1) =2a(2) =12a(3) =132a(4) =2040a(5) =40560a(6) =986160a(7) =28344960a(8) =940222080a(9) =35350378560
External references
- oeis: A213640