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.

A007371 Numbers k such that sigma(x) = k has exactly 2 solutions.

Table of values

n a(n)
1 12
2 18
3 31
4 32
5 54
6 56
7 80
8 98
9 104
10 108
11 114
12 124
13 126
14 128
15 132
16 140
17 152
18 156
19 182
20 186
21 210
22 264
23 272
24 280
25 308
26 320
27 342
28 378
29 390
30 392
31 399
32 403
33 408
34 416
35 440
36 444
37 448
38 492
39 522
40 532
41 570
42 572
43 594
44 608
45 630
46 632
47 726
48 762
49 770
50 774
51 780
52 784
53 800

List of values

[12, 18, 31, 32, 54, 56, 80, 98, 104, 108, 114, 124, 126, 128, 132, 140, 152, 156, 182, 186, 210, 264, 272, 280, 308, 320, 342, 378, 390, 392, 399, 403, 408, 416, 440, 444, 448, 492, 522, 532, 570, 572, 594, 608, 630, 632, 726, 762, 770, 774, 780, 784, 800]