id:A102342 - OEIS Search Results

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Numbers n such that 10n+7 is prime.

+0
8

0, 1, 3, 4, 6, 9, 10, 12, 13, 15, 16, 19, 22, 25, 27, 30, 31, 33, 34, 36, 39, 45, 46, 48, 54, 55, 57, 58, 60, 61, 64, 67, 72, 75, 78, 79, 82, 85, 87, 88, 90, 93, 94, 96, 97, 99, 108, 109, 111, 118, 121, 123, 127, 129, 130, 132, 136, 142, 144, 148, 156, 159, 160, 162, 163 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`If n=1, then 10n+7 = 17 (prime).` `If n=48, then 10n+7 = 487 (prime).` `If n=99, then 10n+7 = 997 (prime).`
	MATHEMATICA	`Select[Range[0, 170], PrimeQ[10# + 7] &] (Chandler)`
	CROSSREFS	`Cf. A030432, A049509.` `Sequence in context: A084438 A080710 A115837 this_sequence A014419 A138670 A080336` `Adjacent sequences: A102339 A102340 A102341 this_sequence A102343 A102344 A102345`
	KEYWORD	`nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Feb 20 2005`
	EXTENSIONS	`Edited and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 07 2006`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

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