id:A095247 - OEIS Search Results

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Least k such that concatenation a(1), a(2), a(3), ...a(n-1),a(n) is divisible by n if and only if n is not a prime.

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1, 1, 2, 4, 1, 6, 1, 6 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`3 does not divide 112 while 4 divides 1124.`
	CROSSREFS	`Sequence in context: A125847 A078886 A122164 this_sequence A007734 A096907 A081879` `Adjacent sequences: A095244 A095245 A095246 this_sequence A095248 A095249 A095250`
	KEYWORD	`base,more,nonn,uned`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 17 2004`

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