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 A117132 Numbers n such that 5*n^5 + 1 is prime. 0
 8, 14, 32, 80, 138, 144, 236, 284, 302, 342, 344, 390, 420, 438, 446, 510, 542, 546, 570, 612, 638, 644, 680, 690, 696, 768, 794, 804, 812, 816, 822, 834, 866, 888, 908, 942, 960, 1020, 1022, 1148, 1190, 1194, 1224, 1250, 1278, 1358, 1368, 1398, 1434, 1446 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE If n=144 then 5*n^5 + 1 = 309586821121 (prime). MATHEMATICA Select[Range[2000], PrimeQ[5#^5 + 1] &] (* Stefan Steinerberger and Giovanni Resta, Apr 22 2006 *) PROG (PARI) is(n)=isprime(5*n^5+1) \\ Charles R Greathouse IV, Jun 13 2017 CROSSREFS Cf. A089001. Sequence in context: A227867 A254034 A225606 * A064969 A236332 A220037 Adjacent sequences:  A117129 A117130 A117131 * A117133 A117134 A117135 KEYWORD nonn,less,easy AUTHOR Parthasarathy Nambi, Apr 20 2006 EXTENSIONS More terms from Stefan Steinerberger and Giovanni Resta, Apr 22 2006 STATUS approved

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Last modified April 18 02:38 EDT 2021. Contains 343072 sequences. (Running on oeis4.)