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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.

A115374 Least prime p such that sigma(x)=sigma(p) has exactly n solutions.

Table of values

n a(n)
1 2
2 11
3 23
4 179
5 71
6 167
7 239
8 431
9 359
10 503
11 3167
12 1511
13 4679
14 2687
15 719
16 9719
17 4799
18 16319
19 5471
20 10559
21 1439
22 26399
23 24623
24 3359
25 15359
26 3023
27 7559
28 6719
29 2879
30 26783
31 10799
32 13103
33 5039
34 6047
35 45863
36 29759
37 61559
38 18719
39 27647
40 99839
41 22679
42 68543

List of values

[2, 11, 23, 179, 71, 167, 239, 431, 359, 503, 3167, 1511, 4679, 2687, 719, 9719, 4799, 16319, 5471, 10559, 1439, 26399, 24623, 3359, 15359, 3023, 7559, 6719, 2879, 26783, 10799, 13103, 5039, 6047, 45863, 29759, 61559, 18719, 27647, 99839, 22679, 68543]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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