id:A154736 - OEIS Search Results

Search: id:A154736

Displaying 1-1 of 1 results found.

page 1

Integers n such that (k=n^2-k)-+1 are primes,k=2.

+0
1

3, 4, 16, 40, 64, 88, 208, 280, 352, 376, 460, 484, 508, 520, 604, 1012, 1024, 1072, 1168, 1240, 1264, 1336, 1420, 1432, 1444, 1912, 2176, 2212, 2548, 2560, 2632, 2836, 2848, 2872, 2944, 2956, 3184, 3220, 3508, 3616, 3640, 3772, 3868, 3892, 3928, 3940 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`k=2; lst={k}; Do[k=n^2-k; If[PrimeQ[k-1]&&PrimeQ[k+1], AppendTo[lst, n]], {n, 8!}]; lst`
	CROSSREFS	`Cf. A154734` `Sequence in context: A047164 A108653 A123773 this_sequence A057542 A110983 A082000` `Adjacent sequences: A154733 A154734 A154735 this_sequence A154737 A154738 A154739`
	KEYWORD	`nonn`
	AUTHOR	`Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 14 2009`

page 1

Search completed in 0.002 seconds

Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research