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A261537
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Primes p such that p^7 + 2 is also prime.
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2
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53, 449, 521, 653, 881, 983, 1031, 1451, 1571, 1733, 1889, 2129, 2729, 3191, 4259, 5879, 6173, 7499, 7829, 8861, 9743, 9923, 10271, 10313, 11423, 11903, 12041, 12149, 12263, 12329, 12641, 12893, 14591, 14723, 14771, 14813, 15401, 16493, 17783, 18713, 19259
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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53^7 + 2 = 1174711139839 is a prime.
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MAPLE
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MATHEMATICA
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Select[Prime[Range[2500]], PrimeQ[#^7 + 2] &]
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PROG
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(Magma) [p: p in PrimesUpTo(20000) | IsPrime(p^7+2)];
(PARI) first(m)=my(v=vector(m)); i=1; for(j=1, m, while(!isprime((prime(i)^7)+2), i++); v[j]=prime(i); i++); v; \\ Anders Hellström, Aug 24 2015
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CROSSREFS
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Cf. similar sequences listed in A261536.
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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