id:A094343 - OEIS Search Results

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Union of pairs of primes p, q with q-p = 4.

+0
3

3, 7, 11, 13, 17, 19, 23, 37, 41, 43, 47, 67, 71, 79, 83, 97, 101, 103, 107, 109, 113, 127, 131, 163, 167, 193, 197, 223, 227, 229, 233, 277, 281, 307, 311, 313, 317, 349, 353, 379, 383, 397, 401, 439, 443, 457, 461, 463, 467, 487, 491, 499, 503, 613, 617, 643 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Numbers n such that either n-4 or n+4 (or both) is prime.`
	LINKS	`Eric Weisstein's World of Mathematics, Cousin Primes`
	CROSSREFS	`Essentially the same as A111980. Union of A023200 and A046132. See also twin primes (A001097). See also A111981, A001097.` `Sequence in context: A020632 A020596 A020600 this_sequence A020598 A023236 A038920` `Adjacent sequences: A094340 A094341 A094342 this_sequence A094344 A094345 A094346`
	KEYWORD	`easy,nonn`
	AUTHOR	`Gerard Schildberger (gerards(AT)rrt.net), Jun 04 2004`
	EXTENSIONS	`Description was messed up during editing; correct description restored Aug 21 2005.`

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

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