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A065510 Primes p such that p^4 - p^3 + p^2 - p + 1 is prime. 1
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; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..1000

MATHEMATICA

Select[Prime[Range[600]], PrimeQ[#^4-#^3+#^2-#+1]&] (* Harvey P. Dale, May 20 2019 *)

PROG

(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)) ) } \\ Harry J. Smith, Oct 20 2009

CROSSREFS

Cf. A053182.

Sequence in context: A067078 A124561 A167604 * A006721 A111289 A255420

Adjacent sequences:  A065507 A065508 A065509 * A065511 A065512 A065513

KEYWORD

easy,nonn

AUTHOR

Vladeta Jovovic, Nov 26 2001

STATUS

approved

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Last modified September 18 12:00 EDT 2019. Contains 327170 sequences. (Running on oeis4.)