id:A138227 - OEIS Search Results

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Odd positive integers n for which A137576((n-1)/2)-1 is not a multiple of A000010(n).

+0
6

21, 35, 45, 51, 65, 69, 75, 77, 85, 91, 93, 99, 105, 115, 117, 123, 129, 133, 141, 145, 147, 155, 165, 171, 185, 187, 189, 195, 203, 205, 213, 215, 217, 219, 221, 231, 235, 237, 245, 247, 253, 255, 259, 261, 265, 267, 273, 275, 279, 285, 291, 299, 301, 305 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`All terms are composite numbers since if p is an odd prime then A137576((p-1)/2)-1=p-1=A000010(p).` `Conjecture. This sequence is infinite.`
	LINKS	`Ray Chandler, Table of n, a(n) for n=1..6500`
	CROSSREFS	`Cf. A137576. A000010, A002326, A006694.` `Sequence in context: A144205 A008946 A095738 this_sequence A155710 A001491 A112352` `Adjacent sequences: A138224 A138225 A138226 this_sequence A138228 A138229 A138230`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Shevelev (shevelev(AT)bgu.ac.il), May 05 2008`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), May 08 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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