id:A141378 - OEIS Search Results

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a(n) = the smallest positive integer non-coprime to both n and sigma(n), where sigma(n) is the sum of divisors of n.

+0
3

6, 6, 14, 10, 2, 14, 6, 39, 2, 22, 2 (list; graph; listen)

	OFFSET	`2,1`
	FORMULA	`a(n) = A141327(n, A000203(n)).`
	CROSSREFS	`Cf. A141327, A141377, A141379.` `Sequence in context: A110357 A091827 A115014 this_sequence A003871 A110626 A072695` `Adjacent sequences: A141375 A141376 A141377 this_sequence A141379 A141380 A141381`
	KEYWORD	`more,nonn`
	AUTHOR	`Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Jun 28 2008`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.