A111558 Row sums of triangle A111553.

1, 2, 9, 60, 509, 5034, 55689, 674624, 8838189, 124199454, 1861297049, 29618273604, 498716980989, 8860512190034, 165694162575369, 3254269731689064, 66994569450549869, 1443024570035017254

Offset: 0

Author

Paul D. Hanna, Aug 07 2005

Keywords

• nonn

Crossrefs

Cf. A111553.

Programs

PARI

{a(n)=if(n<0,0,sum(k=1,n+1,(matrix(n+k,n+k,m,j,if(m==j,1,if(m==j+1,-m+1, -(m-j-1)*polcoeff(log(sum(i=0,m,(i+3)!/3!*x^i)),m-j-1))))^-1)[n+1,k]))}