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Search: id:A054613
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A054613 Sum_{d|n} phi(d)*6^(n/d). +0
2
0, 6, 42, 228, 1344, 7800, 46956, 279972, 1681008, 10078164, 60474120, 362797116, 2176832112, 13060694088, 78364444284, 470185001040, 2821111589856, 16926659444832, 101559966840108, 609359740010604, 3656158500550080 (list; graph; listen)
OFFSET

0,2

FORMULA

n * A054625(n).

CROSSREFS

Sequence in context: A047663 A054642 A082139 this_sequence A141834 A105281 A158797

Adjacent sequences: A054610 A054611 A054612 this_sequence A054614 A054615 A054616

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Apr 16 2000

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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