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Search: id:A140458
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| A140458 |
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Primes p such that p^2 is a sum of 5 successive primes. |
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+0
1
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OFFSET
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1,1
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EXAMPLE
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181+191+193+197+199=31^2, 317+331+337+347+349=41^2, 3733+3739+3761+3767+3769=137^2,...
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MATHEMATICA
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a = {}; For[n = 1, n < 10^4, n++, p1 = Prime[n]; p2 = Prime[n + 1]; p3 = Prime[n + 2]; p4 = Prime[n + 3]; p5 = Prime[n + 4]; p = (p1 + p2 + p3 + p4 + p5)^(1/2); If[PrimeQ[p], AppendTo[a, p]]]; a
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CROSSREFS
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Sequence in context: A141180 A040987 A040180 this_sequence A101520 A089713 A067467
Adjacent sequences: A140455 A140456 A140457 this_sequence A140459 A140460 A140461
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 26 2008
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