id:A039649 - OEIS Search Results

Search: id:A039649

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phi(n)+1.

+0
17

2, 2, 3, 3, 5, 3, 7, 5, 7, 5, 11, 5, 13, 7, 9, 9, 17, 7, 19, 9, 13, 11, 23, 9, 21, 13, 19, 13, 29, 9, 31, 17, 21, 17, 25, 13, 37, 19, 25, 17, 41, 13, 43, 21, 25, 23, 47, 17, 43, 21, 33, 25, 53, 19, 41, 25, 37, 29, 59, 17, 61, 31, 37, 33, 49, 21, 67, 33, 45, 25, 71, 25, 73, 37, 41 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(p) = p for p prime` `a(n) is also phi(n) plus smallest divisors of n. [From Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Oct 07 2009]`
	FORMULA	`a(n)=A000010(n)+A000012(n). {from Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Oct 07 2009]`
	CROSSREFS	`Cf. A000010, A039650-A039656.` `Sequence in context: A102347 A069974 A039650 this_sequence A113605 A070230 A007150` `Adjacent sequences: A039646 A039647 A039648 this_sequence A039650 A039651 A039652`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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