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.

A183181 Numbers k such that (7*10^(2*k+1) - 9*10^k - 7)/9 is prime.

Table of values

n a(n)
1 4
2 5
3 8
4 11
5 1244
6 1685
7 2009
8 14657
9 15118
10 20332
11 50830
12 75062

List of values

[4, 5, 8, 11, 1244, 1685, 2009, 14657, 15118, 20332, 50830, 75062]