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Search: id:A065510
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| A065510 |
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Primes p such that p^4-p^3+p^2-p+1 is prime. |
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+0
1
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| 2, 3, 5, 11, 37, 43, 47, 71, 131, 157, 223, 251, 257, 307, 487, 641, 1087, 1093, 1187, 1291, 1433, 1567, 1621, 1637, 1831, 1873, 1901, 2017, 2111, 2143, 2293, 2333, 2473, 2621, 2663, 2683, 2707, 2777, 2843, 2903, 3257, 3413, 3463, 3613, 3617, 3761, 3793
(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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PROGRAM
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(PARI) { n=0; for (m=1, 10^9, p=prime(m); if (isprime(p^4 - p^3 + p^2 - p + 1), write("b065510.txt", n++, " ", p); if (n==1000, return)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 20 2009]
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CROSSREFS
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Cf. A053182.
Sequence in context: A067078 A124561 A167604 this_sequence A006721 A111289 A127181
Adjacent sequences: A065507 A065508 A065509 this_sequence A065511 A065512 A065513
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KEYWORD
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easy,nonn
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AUTHOR
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Vladeta Jovovic (vladeta(AT)eunet.rs), Nov 26 2001
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