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.

A004062 Numbers k such that (6^k - 1)/5 is prime.

Table of values

n a(n)
1 2
2 3
3 7
4 29
5 71
6 127
7 271
8 509
9 1049
10 6389
11 6883
12 10613
13 19889
14 79987
15 608099
16 1365019
17 3360347

List of values

[2, 3, 7, 29, 71, 127, 271, 509, 1049, 6389, 6883, 10613, 19889, 79987, 608099, 1365019, 3360347]