id:A109322 - OEIS Search Results

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Let a=a(n) be the minimum positive integer such that [a,a+n-1] does not contain any values of sigma(k) (i.e. sum of all positive divisors of k).

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2, 9, 9, 49, 49, 423, 423, 423, 423, 1333, 1333, 4425, 4425, 4425, 4425, 8763, 8763, 14089, 14089, 22825, 22825, 22825, 22825, 40291, 40291, 40291, 40291, 40291, 40291, 178705, 178705, 661285, 661285, 661285, 661285, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Author?, Title?`
	CROSSREFS	`Cf. A109323, A109324.` `Sequence in context: A016643 A087042 A003678 this_sequence A000587 A014182 A131463` `Adjacent sequences: A109319 A109320 A109321 this_sequence A109323 A109324 A109325`
	KEYWORD	`nonn`
	AUTHOR	`Max Alekseyev and Jud McCranie, Aug 08 2005`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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