id:A098424 - OEIS Search Results

Search: id:A098424

Displaying 1-1 of 1 results found.

page 1

Number of prime triples (p,q,r) <= n with p<q<r=p+6.

+0
4

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

	OFFSET	`1,7`
	COMMENT	`Convention: a prime triple is <= n iff its smallest member is <= n;` `a(n) <= A098428(n).`
	LINKS	`Eric Weisstein's World of Mathematics, Prime Triplet`
	EXAMPLE	`a(15) = #{(5,7,11),(7,11,13),(11,13,17),(13,17,19)} = 4.`
	CROSSREFS	`Cf. A007529, A098414, A098415, A071538.` `Sequence in context: A061392 A048273 A024542 this_sequence A098428 A023193 A096605` `Adjacent sequences: A098421 A098422 A098423 this_sequence A098425 A098426 A098427`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Sep 07 2004`

page 1

Search completed in 0.002 seconds

Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research