id:A055719 - OEIS Search Results

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d(n)-1 | n and n is not prime.

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	OFFSET	`1,1`
	COMMENT	`Composite Integers divisible by 1 less than the number of their divisors.`
	MATHEMATICA	`Do[ If[ !PrimeQ[ n ], If[ IntegerQ[ n/(DivisorSigma[ 0, n ]-1) ], Print[ n ] ] ], {n, 1, 500} ]`
	CROSSREFS	`Sequence in context: A114058 A135093 A048753 this_sequence A117883 A106387 A034771` `Adjacent sequences: A055716 A055717 A055718 this_sequence A055720 A055721 A055722`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2000`

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Last modified July 4 18:25 EDT 2008. Contains 140886 sequences.

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