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.

A291993 Primes of the form Phi(k, -7), where Phi is the cyclotomic polynomial.

Table of values

n a(n)
1 43
2 117307
3 2801
4 6568801
5 29078814248401
6 3421093417510114543
7 79787519018560501
8 16148168401
9 1628413557556843
10 13564461457
11 402488219476647465854701
12 13841169553
13 11898664849
14 655417289594537954307682339857743931943
15 33232924804801

List of values

[43, 117307, 2801, 6568801, 29078814248401, 3421093417510114543, 79787519018560501, 16148168401, 1628413557556843, 13564461457, 402488219476647465854701, 13841169553, 11898664849, 655417289594537954307682339857743931943, 33232924804801]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.