login
A144882
Row sums of triangle A144881 (S1hat(3)) and of array A144880 (M31hat(3)).
2
1, 4, 16, 85, 481, 3352, 25420, 223393, 2157565, 23241244, 272933680, 3496821133, 48307202761, 717473918560, 11381186498836, 192155770419673, 3438337498017781, 65004294514876996, 1294456866053992600, 27081588485949257605
OFFSET
1,2
FORMULA
a(n) = Sum_{m=1..n} A144881(n,m), n>=1.
CROSSREFS
Sequence in context: A333370 A125793 A121145 * A298012 A006681 A074876
KEYWORD
nonn,easy
AUTHOR
Wolfdieter Lang, Oct 09 2008
STATUS
approved