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.

A140851 Primes of the form 210k + 53.

Original entry on oeis.org

53, 263, 683, 1103, 1523, 1733, 2153, 3203, 3413, 3623, 3833, 4253, 4463, 4673, 5303, 6143, 6353, 6563, 6983, 7193, 7823, 8243, 8663, 9293, 9923, 10133, 10343, 10973, 11393, 11813, 12653, 13913, 14543, 14753, 15173, 15383, 15803, 16223, 16433
Offset: 1

Views

Author

Juri-Stepan Gerasimov, Jul 04 2008

Keywords

Comments

These are primes p == k (mod prime(k)) for k = 1..4. The subsequence of primes == k (mod prime(k)) for k = 1..5 is 1523, 3833, 6143, 15383 (not in OEIS?). - Zak Seidov, Jun 25 2018

Crossrefs

Cf. A073102.

Programs

  • Magma
    [ a: n in [0..900] | IsPrime(a) where a is 210*n+53] // Vincenzo Librandi, Nov 24 2010
  • Mathematica
    Select[53+210Range[0,150],PrimeQ] (* Ray Chandler, Apr 29 2010 *)

Extensions

Corrected and extended by several authors, Apr 29 2010