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.

A177331 Prime numbers p such that (p*2^k-1)/3 is composite for all even k or all odd k.

Table of values

n a(n)
1 557
2 743
3 919
4 1163
5 3257
6 3301
7 4817
8 5209
9 5581
10 6323
11 6421
12 6983
13 7457
14 7793

List of values

[557, 743, 919, 1163, 3257, 3301, 4817, 5209, 5581, 6323, 6421, 6983, 7457, 7793]