id:A106086 - OEIS Search Results

Search: id:A106086

Displaying 1-1 of 1 results found.

page 1

Primes p such that 7*p+2 and 2*p+7 are primes.

+0
1

3, 5, 11, 23, 47, 53, 71, 131, 173, 197, 251, 257, 293, 317, 383, 461, 467, 587, 593, 683, 701, 773, 797, 863, 953, 983, 1031, 1103, 1151, 1187, 1193, 1217, 1301, 1307, 1373, 1451, 1481, 1607, 1721, 1787, 2111, 2207, 2237, 2333, 2633, 2903, 3023, 3221, 3347 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Cf. A105760 Numbers n such that (2n + 7) is prime; A105772 Numbers n such that (7n + 2) is prime`
	MATHEMATICA	`Select[Prime[Range[220]], PrimeQ[2#+7]&&PrimeQ[7#+2]&]`
	CROSSREFS	`Cf. A105760, A105772.` `Sequence in context: A155753 A133914 A023223 this_sequence A072828 A032803 A030494` `Adjacent sequences: A106083 A106084 A106085 this_sequence A106087 A106088 A106089`
	KEYWORD	`nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), May 07 2005`
	EXTENSIONS	`More terms from Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jan 29 2006`

page 1

Search completed in 0.002 seconds

Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research