id:A088257 - OEIS Search Results

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Primorials P which have at least one prime neighbor. i.e. P+1 or P-1 or both are primes.

+0
5

1, 2, 6, 30, 210, 2310, 30030, 200560490130, 304250263527210, 23768741896345550770650537601358310 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A supersequence of A088256.` `Next term a(10) is 131 digits and is too large to include.`
	CROSSREFS	`Cf. A088256.` `Sequence in context: A096775 A002110 A118491 this_sequence A058694 A046853 A136351` `Adjacent sequences: A088254 A088255 A088256 this_sequence A088258 A088259 A088260`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 27 2003`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 28 2003`

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