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.

A281947 Smallest prime p such that p^i - 1 is a totient (A002202) for all i = 1 to n, or 0 if no such p exists.

Table of values

n a(n)
1 2
2 3
3 7
4 7
5 37
6 37
7 113
8 113
9 241
10 241
11 241
12 241
13 241
14 241
15 241
16 241
17 241
18 241
19 2113
20 2113
21 2113
22 2113
23 2113
24 2113
25 3121
26 3121
27 3121
28 3121

List of values

[2, 3, 7, 7, 37, 37, 113, 113, 241, 241, 241, 241, 241, 241, 241, 241, 241, 241, 2113, 2113, 2113, 2113, 2113, 2113, 3121, 3121, 3121, 3121]