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A141128 Sum over unitary prime power divisors p^k of n of A025528(p^k). +0
1
0, 1, 2, 3, 4, 3, 5, 6, 7, 5, 8, 5, 9, 6, 6, 10, 11, 8, 12, 7, 7, 9, 13, 8, 14, 10, 15, 8, 16, 7, 17, 18, 10, 12, 9, 10, 19, 13, 11, 10, 20, 8, 21, 11, 11, 14, 22, 12, 23, 15, 13, 12, 24, 16, 12, 11, 14, 17, 25, 9, 26, 18, 12, 27, 13, 11, 28, 14, 15, 10, 29, 13, 30, 20, 16, 15, 13, 12, 31 (list; graph; listen)
OFFSET

1,3

COMMENT

Additive with a(p^k) = A025528(p^k).

FORMULA

sum_{p^k|n,not p^{k+1}|n,k>0} A025528(p^k).

CROSSREFS

Cf. A056239, A025528.

Sequence in context: A075850 A054437 A159630 this_sequence A160180 A078908 A159797

Adjacent sequences: A141125 A141126 A141127 this_sequence A141129 A141130 A141131

KEYWORD

nonn

AUTHOR

Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jun 05 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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