E.g.f.: A(x) = Product_{n>=1} (1 + 2*x^n/n)^n.
A182965
E.g.f.: A(x) = Product_{n>=1} (1 + 2*x^n/n)^n.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =36a(4) =168a(5) =1440a(6) =13920a(7) =134400a(8) =1619520a(9) =20549760a(10) =294631680a(11) =4449096960a(12) =74429752320
External references
- oeis: A182965