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A081862 (1/168)*(sigma_7(2n-1)-sigma_1(2n-1)). 0
0, 13, 465, 4902, 28483, 115995, 373503, 1017498, 2442492, 5320665, 10725680, 20266818, 36330915, 62292490, 102677835, 163765560, 253797216, 382977372, 565070697, 817224746, 1159251630, 1617967923, 2225268903, 3015613812 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Cf. A000203.

Sequence in context: A102075 A218586 A166184 * A198012 A197895 A197749

Adjacent sequences:  A081859 A081860 A081861 * A081863 A081864 A081865

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Apr 11 2003

STATUS

approved

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Last modified May 19 17:12 EDT 2013. Contains 225434 sequences.