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Search: id:A114273
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| A114273 |
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Numbers n such that n^2 + k is prime, k=10 case. |
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10
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| 1, 3, 7, 11, 13, 27, 31, 39, 49, 53, 57, 59, 71, 77, 81, 83, 91, 97, 99, 101, 123, 127, 129, 141, 151, 157, 161, 169, 171, 179, 181, 189, 207, 209, 211, 223, 227, 237, 239, 249, 253, 291, 311, 319, 333, 343, 363, 367, 379, 393, 403, 413, 423, 427, 437, 447, 449
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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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, A114272 k=9, A114274 k=11, A114275 k=12.
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MATHEMATICA
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lst={}; k=10; 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
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Cf. A005574, A067201, A049422, A007591, A078402, A114269, A114270, A114271, A114272, A114273, A114274, A114275.
Sequence in context: A095286 A106561 A111363 this_sequence A074336 A086475 A053728
Adjacent sequences: A114270 A114271 A114272 this_sequence A114274 A114275 A114276
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KEYWORD
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nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com), Nov 19 2005
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