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.

A299383 Numbers k such that k * 20^k - 1 is prime.

Table of values

n a(n)
1 1
2 18
3 44
4 60
5 80
6 123
7 429
8 1166
9 2065
10 8774
11 35340
12 42968
13 50312
14 210129

List of values

[1, 18, 44, 60, 80, 123, 429, 1166, 2065, 8774, 35340, 42968, 50312, 210129]