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.

A133127 Numbers k with the property that k followed by k 7's is prime.

Table of values

n a(n)
1 1
2 2
3 4
4 32
5 122
6 388
7 1580
8 2302
9 3436
10 3866
11 16993
12 35263
13 42601
14 51251

List of values

[1, 2, 4, 32, 122, 388, 1580, 2302, 3436, 3866, 16993, 35263, 42601, 51251]