A204323 - OEIS

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A204323

Numbers n such that 4*7^n + 1 is prime.

0, 1, 2, 3, 6, 7, 10, 11, 17, 38, 65, 133, 150, 502, 537, 894 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	LINKS	`Table of n, a(n) for n=1..16.`
	MATHEMATICA	`Select[Range[0, 2000], PrimeQ[4*7^#+1]&]`
	CROSSREFS	`Sequence in context: A014689 A117206 A026443 * A032858 A181498 A030703` `Adjacent sequences: A204320 A204321 A204322 * A204324 A204325 A204326`
	KEYWORD	`nonn`
	AUTHOR	`José María Grau Ribas, Jan 14 2012`
	STATUS	`approved`

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Last modified June 18 18:23 EDT 2013. Contains 226355 sequences.