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.

A216684 Primes p such that p - phi(k)^2 is not prime for 1 <= phi(k)^2 < p.

Table of values

n a(n)
1 2
2 5
3 13
4 31
5 37
6 61
7 127
8 379
9 439
10 571
11 619
12 739
13 829
14 991
15 1549
16 3109
17 3301
18 3319
19 5749
20 7549
21 7879
22 48799

List of values

[2, 5, 13, 31, 37, 61, 127, 379, 439, 571, 619, 739, 829, 991, 1549, 3109, 3301, 3319, 5749, 7549, 7879, 48799]