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Search: id:A026054
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A026054 dot_product(n,n-1,...2,1).(3,4,...,n,1,2). +0
5
13, 28, 50, 80, 119, 168, 228, 300, 385, 484, 598, 728, 875, 1040, 1224, 1428, 1653, 1900, 2170, 2464, 2783, 3128, 3500, 3900, 4329, 4788, 5278, 5800, 6355, 6944, 7568, 8228, 8925, 9660, 10434, 11248, 12103, 13000, 13940, 14924, 15953, 17028, 18150, 19320, 20539, 21808, 23128, 24500, 25925 (list; graph; listen)
OFFSET

3,1

FORMULA

(n+2)(n+3)(n+13)/6. - Ralf Stephan, Feb 14 2004

CROSSREFS

A023551(n+1) + 4.

Column 2 of triangle A094415.

Essentially the same as A060488. - Vladeta Jovovic, Jun 15 2006

Sequence in context: A063309 A098847 A038597 this_sequence A001291 A018974 A018955

Adjacent sequences: A026051 A026052 A026053 this_sequence A026055 A026056 A026057

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.


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