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A129578 Column 0 of triangle A129577. 3
1, 1, 2, 5, 16, 62, 275, 1350, 7204, 41345, 253319, 1647434, 11318410, 81820186, 620213998, 4915135856, 40617213320, 349192774319, 3116811173348, 28830194370470, 275902967857298, 2727619197322857, 27818539432598746 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..22.

FORMULA

Equals partial sums (with offset) of main diagonal (A129579) of triangle A129577.

CROSSREFS

Cf. A129577, A129579, A129580.

Sequence in context: A058259 A033543 A124531 * A005387 A173469 A138549

Adjacent sequences:  A129575 A129576 A129577 * A129579 A129580 A129581

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Apr 24 2007

STATUS

approved

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Last modified May 15 15:29 EDT 2021. Contains 343920 sequences. (Running on oeis4.)