id:A063793 - OEIS Search Results

Search: id:A063793

Displaying 1-1 of 1 results found.

page 1

For n > 0: x(n) = Min{ q prime | nextprime(q) - q - 1 = prime(n + 1)}; a(n) = if x(n) is defined then x(n) else 0.

+0
1

7, 23, 89, 199, 113, 523, 887, 1669, 4297, 5591, 30593, 16141, 15683, 28229, 35617, 43331, 34061, 134513, 31397, 404597, 542603, 461717, 404851, 604073 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Conjecture: a(n) > 0 for n > 0`
	EXAMPLE	`The 3rd odd prime is 7 = 97 - 89 - 1 and for all p < 89 nextprime(p) - p <> 8; therefore a(3) = 89.`
	CROSSREFS	`A046933.` `Sequence in context: A093069 A091514 A003540 this_sequence A096327 A053706 A137367` `Adjacent sequences: A063790 A063791 A063792 this_sequence A063794 A063795 A063796`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Aug 18 2001`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research