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Search: id:A054616
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A054616 Sum_{d|n} phi(d)*9^(n/d). +0
1
0, 9, 90, 747, 6660, 59085, 532350, 4783023, 43053480, 387422001, 3486843810, 31381059699, 282430082700, 2541865828437, 22876797238470, 205891132215735, 1853020231912080, 16677181699666713, 150094635685484490, 1350851717672992251 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A043960 A044641 A165135 this_sequence A052386 A158609 A057092

Adjacent sequences: A054613 A054614 A054615 this_sequence A054617 A054618 A054619

KEYWORD

nonn

AUTHOR

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

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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