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.

A290200 Prime numbers of the form 4^k + 1.

Original entry on oeis.org

2, 5, 17, 257, 65537
Offset: 1

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Author

Robert Price, Jul 23 2017

Keywords

Comments

Similar to Fermat primes, A019434, a(n) is of the form (2^2)^k + 1.

Crossrefs

Programs

  • Mathematica
    Select[4^Range[0, 100] + 1, PrimeQ]