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.

A189559 Least prime k such that x' = k has n solutions, where x' is the arithmetic derivative (A003415) of x.

Table of values

n a(n)
0 2
1 5
2 31
3 167
4 151
5 491
6 983
7 887
8 311
9 1151
10 1559
11 2111
12 1031
13 2711
14 4391
15 4271
16 3671
17 3191
18 5351
19 9551
20 11471
21 14759
22 8951
23 13751
24 11831
25 5591
26 19991
27 10391
28 15791
29 28031
30 30071
31 37511
32 43151
33 27191
34 40031
35 31391
36 52631
37 53231
38 35591
39 52391
40 50951

List of values

[2, 5, 31, 167, 151, 491, 983, 887, 311, 1151, 1559, 2111, 1031, 2711, 4391, 4271, 3671, 3191, 5351, 9551, 11471, 14759, 8951, 13751, 11831, 5591, 19991, 10391, 15791, 28031, 30071, 37511, 43151, 27191, 40031, 31391, 52631, 53231, 35591, 52391, 50951]