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.

A337208 Indices m of repunits R_m that are Colombian (or self) numbers.

Table of values

n a(n)
1 1
2 4
3 6
4 17
5 28
6 39
7 50
8 61
9 72
10 83
11 94
12 109
13 120
14 131
15 142
16 153
17 164
18 175
19 186
20 197
21 199
22 210
23 221
24 232
25 243
26 254
27 265
28 276
29 287
30 298
31 300
32 311
33 322
34 333
35 344
36 355
37 366
38 377
39 388
40 399
41 401
42 412
43 423
44 434
45 445
46 456
47 467
48 478
49 489
50 500
51 502
52 513
53 524
54 535
55 546
56 557

List of values

[1, 4, 6, 17, 28, 39, 50, 61, 72, 83, 94, 109, 120, 131, 142, 153, 164, 175, 186, 197, 199, 210, 221, 232, 243, 254, 265, 276, 287, 298, 300, 311, 322, 333, 344, 355, 366, 377, 388, 399, 401, 412, 423, 434, 445, 456, 467, 478, 489, 500, 502, 513, 524, 535, 546, 557]