A105544 Row sums of triangle A105542, which equals the matrix square of triangle A105540.

1, 3, 9, 21, 50, 132, 293, 660, 1506, 3245, 7076, 16106, 34583, 71142, 152060, 324278, 675302, 1376229, 2802336, 5785296, 11845829, 23776227, 46881076, 93000635, 184777349, 365374417, 715280116, 1384696572, 2662428956, 5123722227

Offset

0,2

Comments

Triangular matrix A105540 has the property that column n equals A105540^(n+1) when flattened as read by rows.

Links

Table of n, a(n) for n=0..29.

Crossrefs

Cf. A105542, A105540.

Sequence in context: A274230 A056823 A369343 * A119917 A111209 A262444

Adjacent sequences: A105541 A105542 A105543 * A105545 A105546 A105547

Keyword

nonn

Author

Paul D. Hanna, Apr 13 2005

Status

approved