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 A006313 Numbers n such that n^16 + 1 is prime. (Formerly M2164) 43
 1, 2, 44, 74, 76, 94, 156, 158, 176, 188, 198, 248, 288, 306, 318, 330, 348, 370, 382, 396, 452, 456, 470, 474, 476, 478, 560, 568, 598, 642, 686, 688, 690, 736, 774, 776, 778, 790, 830, 832, 834, 846, 900, 916, 946, 956, 972, 982, 984, 1018, 1044, 1078 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES Dubner, Harvey. "Generalized Fermat primes." J. Recreational Math., 18 (1985): 279-280. N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS T. D. Noe, Table of n, a(n) for n=1..1000 MATHEMATICA lst={}; Do[If[PrimeQ[n^16+1], AppendTo[lst, n]], {n, 10^4}]; lst (* Vladimir Joseph Stephan Orlovsky, Aug 20 2008 *) s=Reap[Sow[1]; Do[If[PrimeQ[n^16+1], Sow[n]], {n, 2, 40352, 2}]][[2, 1]] (* Zak Seidov, Dec 22 2010 *) Join[{1}, 2*Flatten[Position[Range[2, 1100, 2]^16+1, _?PrimeQ]]] (* Harvey P. Dale, Jun 26 2017 *) PROG (PARI) isA006313(n) = isprime(n^16+1) \\ Michael B. Porter, Mar 25 2010 (MAGMA) [ n: n in [0..1500] | IsPrime(n^16+1) ]; // Vincenzo Librandi, Nov 18 2010 CROSSREFS Cf. A005574, A000068, A006314, A006315, A006316, A056994, A056995, A057465, A057002, A088361, A088362, A226528, A226529, A226530, A251597, A253854, A244150, A243959, A321323. Sequence in context: A156508 A239865 A007367 * A059737 A123829 A242856 Adjacent sequences:  A006310 A006311 A006312 * A006314 A006315 A006316 KEYWORD nonn AUTHOR EXTENSIONS More terms from Hugo Pfoertner, Jun 22 2003 STATUS approved

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Last modified October 17 19:24 EDT 2019. Contains 328127 sequences. (Running on oeis4.)