E.g.f. satisfies: A(x) = exp(x^2*A(x)) where A(x) = Sum_{n>=0} a(n)*x^(2n)/(2n)!.
A178949
E.g.f. satisfies: A(x) = exp(x^2*A(x)) where A(x) = Sum_{n>=0} a(n)*x^(2n)/(2n)!.
Terms
- a(0) =1a(1) =2a(2) =36a(3) =1920a(4) =210000a(5) =39191040a(6) =11181360960
External references
- oeis: A178949