cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A282944 Numbers k such that 3*2^k + 1 is a prime factor of a generalized Fermat number 11^(2^m) + 1 for some m.

Original entry on oeis.org

6, 30, 36, 66, 276, 353, 2816, 3189, 34350, 48150, 80190, 1832496, 2291610, 5082306, 10829346
Offset: 1

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Author

Arkadiusz Wesolowski, Feb 25 2017

Keywords

Crossrefs

Programs

  • Magma
    SetDefaultRealField(RealField(350)); IsInteger := func; [n: n in [2..353] | IsPrime(k) and IsInteger(Log(2, Modorder(11, k))) where k is 3*2^n+1];
  • Mathematica
    lst = {}; Do[p = 3*2^n + 1; If[PrimeQ[p] && IntegerQ@Log[2, MultiplicativeOrder[11, p]], AppendTo[lst, n]], {n, 3189}]; lst
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