L.g.f.: Sum_{n>=1} a(n)*x^n/n = Sum_{n>=1} (1 + C(2n-1,n-1)*x)^n * x^n/n.
A159321
L.g.f.: Sum_{n>=1} a(n)*x^n/n = Sum_{n>=1} (1 + C(2n-1,n-1)*x)^n * x^n/n.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =59a(4) =676a(5) =13782a(6) =525624a(7) =39289875a(8) =5306323852
External references
- oeis: A159321