A054613 - OEIS

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A054613

Sum_{d|n} phi(d)*6^(n/d).

0, 6, 42, 228, 1344, 7800, 46956, 279972, 1681008, 10078164, 60474120, 362797116, 2176832112, 13060694088, 78364444284, 470185001040, 2821111589856, 16926659444832, 101559966840108, 609359740010604, 3656158500550080 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`n * A054625(n).`
	CROSSREFS	`Sequence in context: A054642 A082139 A180286 * A141834 A180355 A105281` `Adjacent sequences: A054610 A054611 A054612 * A054614 A054615 A054616`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Apr 16 2000`

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Last modified February 14 08:47 EST 2012. Contains 205614 sequences.