id:A099477 - OEIS Search Results

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Numbers having no divisors d such that also d+2 is a divisor.

+0
4

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	OFFSET	`1,2`
	COMMENT	`A099475(a(n)) = 0: complement of A059267.`
	MATHEMATICA	`fQ[n_] := Union[ IntegerQ[ # ] & /@ (n/(Divisors[n] + 2))][[ -1]] == True; Select[ Range[133], !fQ[ # ] &] (from Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2005)`
	CROSSREFS	`Cf. A108118.` `Sequence in context: A086422 A046880 A108118 this_sequence A067934 A112730 A049842` `Adjacent sequences: A099474 A099475 A099476 this_sequence A099478 A099479 A099480`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Oct 18 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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