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.

A057187 Numbers n such that (21^n+1)/22 is a prime.

Table of values

n a(n)
1 3
2 5
3 7
4 13
5 37
6 347
7 17597
8 59183
9 80761
10 210599
11 394579

List of values

[3, 5, 7, 13, 37, 347, 17597, 59183, 80761, 210599, 394579]