id:A106480 - OEIS Search Results

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Row sums of inverse of sequence array for Euler phi function.

+0
2

1, 0, -1, 0, -1, 2, -1, -2, 5, -4, 1, 0, -7, 18, -9, -12, 17, -24, 31, 6, -67, 94, -49, -60, 157, -230, 217, 118, -619, 758, -461, -252, 1509, -2490, 1867, 780, -4531, 6932, -5543, -820, 11885, -21248, 17591, 2586, -32415, 58070, -54325, -56 (list; graph; listen)

	OFFSET	`0,6`
	FORMULA	`G.f.: 1/(sum{j>=0, phi(j+1)x^j}(1-x))`
	CROSSREFS	`Sequence in context: A064192 A124218 A025165 this_sequence A099602 A151703 A151691` `Adjacent sequences: A106477 A106478 A106479 this_sequence A106481 A106482 A106483`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), May 03 2005`

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Last modified December 1 13:27 EST 2009. Contains 167806 sequences.

AT&T Labs Research