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.

Showing 1-2 of 2 results.

A250394 Numbers k such that 56211383760397 + 44546738095860*k is prime.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 27, 40, 64, 72, 73, 74, 80, 82, 86, 90, 91, 92, 93, 94, 98, 105, 109, 114, 123, 124, 136, 137, 146, 153, 156, 158, 159, 160, 166, 183, 185, 186, 194, 199, 204, 213, 216, 217, 228
Offset: 1

Views

Author

Vincenzo Librandi, Nov 21 2014

Keywords

Comments

Terms up to 22 are consecutive. Arithmetic progression found in 2004 by Markus Frind, Paul Underwood, and Paul Jobling (see Green and Tao, 2008).

Crossrefs

Programs

  • Magma
    [n: n in [0..300] | IsPrime(56211383760397+44546738095860*n)];
    
  • Mathematica
    Select[Range[0, 300], PrimeQ[56211383760397 + 44546738095860 #]&]
  • PARI
    is(n)=isprime(56211383760397+44546738095860*n) \\ Charles R Greathouse IV, Jun 13 2017

A250395 Numbers k such that 11410337850553 + 4609098694200*k is prime.

Original entry on oeis.org

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 26, 30, 31, 41, 43, 50, 57, 61, 69, 75, 88, 90, 98, 99, 101, 108, 116, 127, 128, 131, 132, 133, 146, 154, 156, 159, 160, 162, 164, 165, 171, 172, 182, 183, 188, 191, 193, 194, 197
Offset: 1

Views

Author

Vincenzo Librandi, Nov 21 2014

Keywords

Comments

Terms up to 21 are consecutive. Arithmetic progression found by Pritchard et al. (1995).

Crossrefs

Programs

  • Magma
    [n: n in [0..200] | IsPrime(11410337850553+4609098694200*n)];
    
  • Mathematica
    Select[Range[0, 300], PrimeQ[11410337850553 + 4609098694200 #] &]
  • PARI
    is(n)=isprime(11410337850553+4609098694200*n) \\ Charles R Greathouse IV, Jun 13 2017
Showing 1-2 of 2 results.