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A128324 Row sums of triangle A128320. 4
1, 2, 8, 31, 159, 955, 6677, 51308, 429868, 3847548, 36599474, 366515450, 3848812068, 42154442638, 480103999452, 5666303543327, 69139729751267, 870092119451903, 11272494698299169, 150074841511853609 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 21 05:55 EDT 2020. Contains 337267 sequences. (Running on oeis4.)