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A015765 Phi(n) | Sigma_7(n). +0
3
1, 2, 3, 6, 12, 14, 15, 30, 35, 42, 56, 70, 78, 105, 140, 168, 190, 210, 248, 264, 270, 295, 357, 418, 420, 570, 590, 594, 616, 630, 714, 744, 767, 812, 840, 885, 910, 1038, 1045, 1240, 1254, 1416, 1485, 1534, 1589, 1672, 1770, 1848, 2065, 2090 (list; graph; listen)
OFFSET

0,2

COMMENT

sigma_7(n) is the sum of the 7th powers of the divisors of n.

CROSSREFS

Sequence in context: A015761 A015763 A015769 this_sequence A015771 A020492 A110590

Adjacent sequences: A015762 A015763 A015764 this_sequence A015766 A015767 A015768

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com)

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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