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A153320
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Primes p such that p^2+-48 are also primes.
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3
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5, 17, 19, 59, 61, 191, 227, 521, 641, 683, 709, 857, 863, 919, 983, 1031, 1039, 1097, 1117, 1123, 1151, 1229, 1423, 1543, 1579, 1621, 1699, 1733, 1759, 1867, 1871, 2153, 2237, 2287, 2357, 2383, 2557, 2621, 2879, 2971, 3301, 3329, 3371, 3581, 3847, 4021
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..46.
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MATHEMATICA
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fQ[n_]:=PrimeQ[n^2-48]&&PrimeQ[n^2+48]; lst={}; Do[If[fQ@Prime[n], AppendTo[lst, Prime[n]]], {n, 7!}]; lst
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PROG
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(MAGMA) [p: p in PrimesUpTo(5000)|IsPrime(p^2-48) and IsPrime(p^2+48)] [From Vincenzo Librandi, Jan 30 2011]
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CROSSREFS
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Cf. A153116, A153119, A153120
Sequence in context: A038964 A019401 A217079 * A171253 A171255 A098333
Adjacent sequences: A153317 A153318 A153319 * A153321 A153322 A153323
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KEYWORD
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nonn
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AUTHOR
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Vladimir Joseph Stephan Orlovsky, Dec 23 2008
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STATUS
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approved
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