A091354 Row sums of the matrix cube of triangle A091351, in which the k-th column lists the row sums of A091351^k (the k-th power of A091351 when considered as a lower triangular matrix).

1, 4, 16, 70, 344, 1908, 11904, 83028, 642960, 5490560, 51373420, 523581128, 5781166688, 68819889018, 879350377816, 12012238559559, 174794145558664, 2700485871440464, 44163954923956850, 762460145368056070

Offset

0,2

Comments

Also equals the third column of triangle A091351.

Links

Table of n, a(n) for n=0..19.

Crossrefs

Cf. A091351, A091352, A091353.

Sequence in context: A133789 A151244 A280767 * A326654 A246014 A373959

Adjacent sequences: A091351 A091352 A091353 * A091355 A091356 A091357

Keyword

nonn

Author

Paul D. Hanna, Jan 02 2004

Status

approved