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.

A007370 Numbers k such that sigma(x) = k has a unique solution.

Table of values

n a(n)
1 1
2 3
3 4
4 6
5 7
6 8
7 13
8 14
9 15
10 20
11 28
12 30
13 36
14 38
15 39
16 40
17 44
18 57
19 62
20 63
21 68
22 74
23 78
24 91
25 93
26 102
27 110
28 112
29 121
30 127
31 133
32 138
33 150
34 158
35 160
36 162
37 164
38 171
39 174
40 176
41 183
42 194
43 195
44 198
45 200
46 204
47 212
48 217
49 222
50 230
51 242
52 255
53 256
54 258
55 260
56 266
57 278
58 282

List of values

[1, 3, 4, 6, 7, 8, 13, 14, 15, 20, 28, 30, 36, 38, 39, 40, 44, 57, 62, 63, 68, 74, 78, 91, 93, 102, 110, 112, 121, 127, 133, 138, 150, 158, 160, 162, 164, 171, 174, 176, 183, 194, 195, 198, 200, 204, 212, 217, 222, 230, 242, 255, 256, 258, 260, 266, 278, 282]