id:A058620 - OEIS Search Results

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Lesser of two consecutive primes such that their difference divided by two is a prime: ( P(next prime after n) - P(n) )/2 is prime.

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7, 13, 19, 23, 31, 37, 43, 47, 53, 61, 67, 73, 79, 83, 97, 103, 109, 113, 127, 131, 139, 151, 157, 163, 167, 173, 181, 193, 223, 229, 233, 241, 251, 257, 263, 271, 277, 283, 293, 307, 313, 317, 331, 337, 349, 353, 367, 373, 379, 383, 397, 409, 421, 433, 439 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`Do[ If[ PrimeQ[ (Prime[n + 1] - Prime[n] )/2], Print[ Prime[n] ]], {n, 1, 100} ]`
	CROSSREFS	`Sequence in context: A088982 A033561 A049591 this_sequence A038910 A035497 A059335` `Adjacent sequences: A058617 A058618 A058619 this_sequence A058621 A058622 A058623`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 28 2000`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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