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 A261537 Primes p such that p^7 + 2 is also prime. 2
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Subsequence of primes of A216980. - Michel Marcus, Aug 24 2015 LINKS EXAMPLE 53^7 + 2 = 1174711139839 is a prime. MAPLE A261537:=n->`if`(isprime(n) and isprime(n^7+2), n, NULL): seq(A261537(n), n=1..5*10^4); # Wesley Ivan Hurt, Apr 14 2017 MATHEMATICA Select[Prime[Range[2500]], PrimeQ[#^7 + 2] &] PROG (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 HellstrÃ¶m, Aug 24 2015 CROSSREFS Cf. A000040, A216980. Subsequence of A007528. Cf. similar sequences listed in A261536. Sequence in context: A185239 A053736 A181968 * A142209 A322043 A293089 Adjacent sequences:  A261534 A261535 A261536 * A261538 A261539 A261540 KEYWORD nonn,easy AUTHOR Vincenzo Librandi, Aug 24 2015 STATUS approved

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Last modified January 17 09:32 EST 2020. Contains 330949 sequences. (Running on oeis4.)