id:A098428 - OEIS Search Results

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Number of sexy prime pairs <= n.

+0
5

0, 0, 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15 (list; graph; listen)

	OFFSET	`1,7`
	COMMENT	`Convention: a prime pair is <= n iff its smallest member is <= n.`
	LINKS	`Eric Weisstein's World of Mathematics, Sexy Primes`
	EXAMPLE	`First sexy prime pairs: (5,11),(7,13),(11,17),(13,19), ...` `therefore the sequence starts: 0 0 0 0 1 1 2 2 2 2 3 3 4 ...`
	CROSSREFS	`Cf. A023201, A046117, A098424, A071538, A098429.` `Sequence in context: A048273 A024542 A098424 this_sequence A023193 A096605 A109497` `Adjacent sequences: A098425 A098426 A098427 this_sequence A098429 A098430 A098431`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Sep 07 2004`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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