id:A072160 - OEIS Search Results

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Numerator of Sum_{k=1..n} phi(k)/k^4.

+0
2

1, 17, 1409, 11353, 7137097, 7147097, 17199059897, 137714029801, 3721352084627, 3722696337299, 54537603391194659, 54547094712264659, 1558510008178113485699, 1558729492839246365699, 1558951562903235322883, 12472984853932601449939 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`1, 17/16, 1409/1296, 11353/10368, 7137097/6480000, 7147097/6480000, ...`
	CROSSREFS	`Cf. A072161.` `Sequence in context: A128542 A067409 A007410 this_sequence A078814 A129911 A104808` `Adjacent sequences: A072157 A072158 A072159 this_sequence A072161 A072162 A072163`
	KEYWORD	`nonn,frac`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Jun 28 2002`

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Last modified March 17 00:31 EDT 2010. Contains 173532 sequences.

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