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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.

A336462 Numbers k for which A335915(sigma(k)) = A335915(sigma(sigma(k))).

Table of values

n a(n)
1 1
2 2
3 5
4 12
5 19
6 24
7 27
8 28
9 38
10 39
11 44
12 54
13 56
14 59
15 60
16 65
17 78
18 83
19 84
20 87
21 92
22 95
23 123
24 124
25 129
26 133
27 136
28 143
29 160
30 167
31 168
32 178
33 212
34 223
35 248
36 258
37 259
38 266
39 269
40 276
41 285
42 288
43 297
44 308
45 360
46 393
47 395
48 413
49 427
50 429
51 437
52 446
53 455
54 473
55 479
56 501
57 518
58 522
59 528
60 555
61 560
62 581
63 611
64 612
65 681
66 738
67 752
68 755

List of values

[1, 2, 5, 12, 19, 24, 27, 28, 38, 39, 44, 54, 56, 59, 60, 65, 78, 83, 84, 87, 92, 95, 123, 124, 129, 133, 136, 143, 160, 167, 168, 178, 212, 223, 248, 258, 259, 266, 269, 276, 285, 288, 297, 308, 360, 393, 395, 413, 427, 429, 437, 446, 455, 473, 479, 501, 518, 522, 528, 555, 560, 581, 611, 612, 681, 738, 752, 755]

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

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