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.

A261459 Numbers k such that the concatenation of k 1's, the digits of k^2 + k + 1, and k 1's is prime.

Table of values

n a(n)
1 1
2 3
3 4
4 5
5 6
6 10
7 254
8 410
9 751
10 1101
11 2488
12 3476
13 14124
14 20060

List of values

[1, 3, 4, 5, 6, 10, 254, 410, 751, 1101, 2488, 3476, 14124, 20060]