A128324 Row sums of triangle A128320.

1, 2, 8, 31, 159, 955, 6677, 51308, 429868, 3847548, 36599474, 366515450, 3848812068, 42154442638, 480103999452, 5666303543327, 69139729751267, 870092119451903, 11272494698299169, 150074841511853609

Offset

0,2

Links

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

Prog

(PARI)

Crossrefs

Cf. A128320 (triangle), A128321 (column 0), A128322 (column 1), A128323 (column 2); variant: A115084.

Sequence in context: A308336 A120774 A261052 * A264572 A279692 A332444

Adjacent sequences: A128321 A128322 A128323 * A128325 A128326 A128327

Keyword

nonn

Author

Paul D. Hanna, Feb 25 2007

Status

approved