A152402 Column 2 of triangle A152400.

1, 3, 15, 99, 794, 7414, 78507, 926026, 12010188, 169580899, 2586371577, 42336163519, 739814864633, 13739211766050, 270108101356162, 5602446487013365, 122232180232983149, 2797753890784828302

Offset

0,2

Comments

Matrix powers of triangle T=A152400 satisfy:

column k of T^(j+1) = column j of T^(k+1) for all j>=0, k>=0.

Links

Table of n, a(n) for n=0..17.

Crossrefs

Cf. A152400; A127715, A152401, A152403, A152404; A152405.

Sequence in context: A156106 A111546 A219359 * A361596 A255806 A226515

Adjacent sequences: A152399 A152400 A152401 * A152403 A152404 A152405

Keyword

nonn

Author

Paul D. Hanna, Dec 05 2008

Status

approved