A091547 Row sums of triangle A091543.

1, 3, 11, 93, 1837, 64543, 3754807, 364026729, 57155586089, 13507554452859, 4491954229297987, 2028035990665237525, 1227168186637813749445, 987585965101526606515191, 1041500427833355704666149103

Offset: 1

Author

Wolfdieter Lang, Feb 13 2004

Keywords

• nonn
• easy

Formula

a(n)=sum(A091543(n, m), m=0..n-1), n>=1.