id:A064220 - OEIS Search Results

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Least k such that k*11^n +/- 1 are twin primes.

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4, 18, 12, 12, 120, 168, 72, 78, 810, 312, 90, 138, 270, 948, 408, 192, 960, 1920, 738, 4698, 810, 1872, 6978, 2058, 3222, 570, 870, 390, 9708, 14118, 9378, 6822, 8730, 2250, 1008, 8052, 732, 5400, 2910, 5982, 2688, 16758, 1908, 258, 762, 1488, 12678 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Do[ k = 1; While[ ! PrimeQ[ k11^n + 1 ] \|\| ! PrimeQ[ k11^n - 1 ], k++ ]; Print[ k ], {n, 0, 50} ]`
	CROSSREFS	`Cf. A063983.` `Sequence in context: A059903 A077109 A070923 this_sequence A081420 A039277 A045019` `Adjacent sequences: A064217 A064218 A064219 this_sequence A064221 A064222 A064223`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 21 2001`

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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