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A114272
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Numbers n such that n^2 + k is prime, k=9 case.
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10
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2, 8, 10, 20, 32, 38, 40, 52, 58, 62, 70, 82, 88, 98, 100, 110, 112, 118, 140, 142, 160, 170, 188, 190, 200, 202, 212, 218, 220, 242, 298, 308, 320, 332, 350, 358, 368, 380, 382, 400, 410, 412, 422, 448, 472, 482, 490, 502, 512, 530, 538, 542, 568, 572, 578
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Other cases: A005574 k=1, A067201 k=2, A049422 k=3, A007591 k=4, A078402 k=5, A114269 k=6, A114270 k=7, A114271 k=8, A114273 k=10, A114274 k=11, A114275 k=12.
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MATHEMATICA
| lst={}; k=9; Do[If[PrimeQ[n^2+k], (*Print[n]; *)AppendTo[lst, n]], {n, 6!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 26 2008]
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CROSSREFS
| Cf. A005574, A067201, A049422, A007591, A078402, A114269, A114270, A114271, A114273, A114274, A114275.
Sequence in context: A195582 A071388 A032356 * A108468 A165593 A127219
Adjacent sequences: A114269 A114270 A114271 * A114273 A114274 A114275
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KEYWORD
| nonn
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), Nov 19 2005
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