A144882 Row sums of triangle A144881 (S1hat(3)) and of array A144880 (M31hat(3)).

1, 4, 16, 85, 481, 3352, 25420, 223393, 2157565, 23241244, 272933680, 3496821133, 48307202761, 717473918560, 11381186498836, 192155770419673, 3438337498017781, 65004294514876996, 1294456866053992600, 27081588485949257605

Offset: 1

Author

Wolfdieter Lang, Oct 09 2008

Keywords

• nonn
• easy

Crossrefs

Cf. A144880, A144881.

Formula

a(n) = Sum_{m=1..n} A144881(n,m), n>=1.