id:A110905 - OEIS Search Results

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Least number k such that k*p(n)#-1 is prime and (k*p(n)#-1)^2-2 is a Chen prime.

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2, 1, 1, 11, 1, 6, 41, 17, 8, 13, 14, 107, 84, 23, 4, 101, 13, 89, 211, 58, 83, 75, 260, 414, 35, 39, 871, 79, 27, 42, 915, 44, 349, 142, 249, 404, 140, 84, 1068, 693, 972, 236, 1571, 1200, 298, 423, 970, 183, 173, 659, 523, 645, 1596, 448, 40, 201, 195, 1859, 427, 1732 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`22-1=3, (22-1)^2-2=7 3 and 7 primes so k(1)=2` `112357-1=2309, (112357-1)^2-2=5331479 2309 and 5331479 primes so k(4)=11`
	CROSSREFS	`Sequence in context: A154989 A064307 A165883 this_sequence A158202 A066094 A010246` `Adjacent sequences: A110902 A110903 A110904 this_sequence A110906 A110907 A110908`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), Sep 21 2005`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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