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 A100496 Numbers n such that (2^n+1)^4-2 is prime. 2
 1, 7, 25, 31, 34, 271, 514, 2896, 8827 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Some of the results were computed using the PrimeFormGW (PFGW) primality-testing program. - Hugo Pfoertner, Nov 14 2019 LINKS EXAMPLE a(1) = 1 because (2^1+1)^4 - 2 = 79 is prime and is the first such prime. MATHEMATICA Select[Range[5000], PrimeQ[(2^# + 1)^4 - 2] &] PROG (PARI) is(n)=ispseudoprime((2^n+1)^4-2) \\ Charles R Greathouse IV, Jun 13 2017 CROSSREFS Cf. A091513, A091514, A093069, A099359. Cf. A100497, n such that (2^n+1)^4-2 is semiprime. Sequence in context: A327107 A075926 A065660 * A110081 A140716 A141393 Adjacent sequences:  A100493 A100494 A100495 * A100497 A100498 A100499 KEYWORD more,nonn AUTHOR Jonathan Vos Post, Nov 23 2004 EXTENSIONS Edited, corrected and extended by Ray Chandler and Hugo Pfoertner, Nov 26 2004 STATUS approved

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Last modified August 5 22:11 EDT 2020. Contains 336214 sequences. (Running on oeis4.)