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A054615 a(n) = Sum_{d|n} phi(d)*8^(n/d). 1
0, 8, 72, 528, 4176, 32800, 262800, 2097200, 16781472, 134218800, 1073774880, 8589934672, 68719748256, 549755813984, 4398048608688, 35184372156480, 281474993496384, 2251799813685376, 18014398644225456, 144115188075856016 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..19.

CROSSREFS

Column k=8 of A185651.

Sequence in context: A082141 A304826 A270241 * A111919 A052379 A246940

Adjacent sequences:  A054612 A054613 A054614 * A054616 A054617 A054618

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 16 2000

STATUS

approved

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Last modified July 17 20:45 EDT 2019. Contains 325109 sequences. (Running on oeis4.)