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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.

A279102 Numbers n having three parts in the symmetric representation of sigma(n).

Table of values

n a(n)
1 9
2 15
3 25
4 35
5 45
6 49
7 50
8 70
9 77
10 91
11 98
12 110
13 121
14 130
15 135
16 143
17 154
18 169
19 170
20 182
21 187
22 190
23 209
24 221
25 225
26 238
27 242
28 247
29 266
30 286
31 289
32 299
33 315
34 322
35 323
36 338
37 350
38 361
39 374
40 391
41 405
42 418
43 437
44 442
45 484
46 493
47 494
48 506
49 527
50 529
51 550
52 551
53 572
54 578
55 589
56 598
57 638
58 646
59 650
60 667
61 675
62 676
63 682

List of values

[9, 15, 25, 35, 45, 49, 50, 70, 77, 91, 98, 110, 121, 130, 135, 143, 154, 169, 170, 182, 187, 190, 209, 221, 225, 238, 242, 247, 266, 286, 289, 299, 315, 322, 323, 338, 350, 361, 374, 391, 405, 418, 437, 442, 484, 493, 494, 506, 527, 529, 550, 551, 572, 578, 589, 598, 638, 646, 650, 667, 675, 676, 682]

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

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