id:A088724 - OEIS Search Results

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Numbers having exactly one divisor d>1 such that also d+1 is a divisor.

+0
5

6, 18, 20, 40, 54, 56, 66, 78, 80, 100, 102, 110, 112, 114, 138, 140, 160, 162, 174, 182, 186, 198, 200, 222, 224, 234, 246, 258, 260, 272, 282, 318, 320, 340, 354, 364, 366, 392, 400, 402, 414, 426, 438, 448, 460, 474, 486, 498, 500, 506, 520, 522, 534, 544 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A088722(a(n))=1; subsequence of A088723.`
	CROSSREFS	`Cf. A088722, A088723, A088725, A088726.` `Sequence in context: A093106 A114452 A108762 this_sequence A124276 A107405 A077663` `Adjacent sequences: A088721 A088722 A088723 this_sequence A088725 A088726 A088727`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 12 2003`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), May 29 2008`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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