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A154736 Integers n such that (k=n^2-k)-+1 are primes,k=2. 0
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; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..46.

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: A328773 A330693 A329541 * A188114 A188116 A300316

Adjacent sequences:  A154733 A154734 A154735 * A154737 A154738 A154739

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Jan 14 2009

STATUS

approved

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Last modified October 20 12:21 EDT 2021. Contains 348106 sequences. (Running on oeis4.)