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Search: id:A062718
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| A062718 |
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p and p^2+6 are both prime. |
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+0
5
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| 5, 11, 19, 31, 61, 79, 89, 109, 131, 151, 199, 269, 331, 401, 431, 569, 709, 859, 929, 941, 971, 991, 1039, 1249, 1319, 1361, 1409, 1451, 1531, 1549, 1559, 1571, 1601, 1619, 1699, 1879, 1901, 1999, 2069, 2081, 2089, 2111, 2179, 2341, 2399, 2411, 2621
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
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MATHEMATICA
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f[n_]:=n^2+6; lst={}; Do[p=Prime[n]; If[PrimeQ[f[p]], AppendTo[lst, p]], {n, 7!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Jul 16 2009]
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PROGRAM
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(PARI) je=[]; for(n=1, 700, if(isprime(prime(n)^2+6), je=concat(je, prime(n)))); je
(PARI) { n=0; for (m=1, 10^9, if (isprime(prime(m)^2 + 6), write("b062718.txt", n++, " ", prime(m)); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 09 2009]
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CROSSREFS
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Sequence in context: A065995 A023245 A125003 this_sequence A105914 A106016 A112794
Adjacent sequences: A062715 A062716 A062717 this_sequence A062719 A062720 A062721
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KEYWORD
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nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Jul 14 2001
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