A209425 Column 2 of triangle A209424.

1, 12, 347, 20429, 1919660, 259227625, 47484618291, 11331926690549, 3416394867284954, 1269892206580345425, 570576180005762038644, 304859737124260849580998, 191049110542296621467314753, 138786261071300963667336947034, 115691448070469092032508527982414

Offset: 2

Author

Paul D. Hanna, Mar 08 2012

Keywords

• nonn

Crossrefs

Cf. A209424, A209426.

Programs

PARI

{a(n)=polcoeff(polcoeff(exp(sum(m=1,n,x^m/m*sum(k=0,m,binomial(m,k)^m*y^k))+x*O(x^n)),n,x),2,y)}
for(n=0,20,print1(a(n),", "))