id:A062950 - OEIS Search Results

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C(H(n)), where C(n) is Chowla's function (A048050) and H(n) is the half-totient function (A023022).

+0
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-1, -1, 0, -1, 0, 0, 0, 0, 0, 0, 5, 0, 2, 2, 6, 0, 3, 2, 5, 0, 0, 2, 7, 5, 3, 5, 9, 2, 8, 6, 7, 6, 15, 5, 20, 3, 15, 6, 21, 5, 10, 7, 15, 0, 0, 6, 10, 7, 14, 15, 15, 3, 21, 15, 20, 9, 0, 6, 41, 8, 20, 14, 35, 7, 14, 14, 13, 15, 12, 15, 54, 20, 21, 20, 41, 15, 16, 14, 12, 21, 0, 15, 30, 10, 27, 21, 39, 15, 54, 13, 41, 0, 54, 14, 75, 10, 41, 21, 42, 14 (list; graph; listen)

	OFFSET	`3,11`
	PROGRAM	`(PARI) C(n)=sigma(n)-n-1; H(n)=eulerphi(n)/2; j=[]; for(n=3, 150, j=concat(j, C(H(n)))); j`
	CROSSREFS	`Cf. A048050, A023022.` `Sequence in context: A133843 A064315 A099221 this_sequence A019625 A021999 A021203` `Adjacent sequences: A062947 A062948 A062949 this_sequence A062951 A062952 A062953`
	KEYWORD	`sign`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 21 2001`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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