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Search: id:A022264
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A022264 n*(7n-1)/2. +0
3
0, 3, 13, 30, 54, 85, 123, 168, 220, 279, 345, 418, 498, 585, 679, 780, 888, 1003, 1125, 1254, 1390, 1533, 1683, 1840, 2004, 2175, 2353, 2538, 2730, 2929, 3135, 3348, 3568, 3795, 4029, 4270, 4518, 4773 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=C(7*n,2)/7,n>=0 - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 02 2007

MAPLE

[seq(binomial(7*n, 2)/7, n=0..37)]; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 02 2007

CROSSREFS

Adjacent sequences: A022261 A022262 A022263 this_sequence A022265 A022266 A022267

Sequence in context: A024836 A023553 A051805 this_sequence A097955 A077717 A054554

KEYWORD

nonn

AUTHOR

njas

page 1

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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