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.

A349750 Odd numbers k such that sigma(k) == k (mod 3), where sigma is the sum of divisors function.

Table of values

n a(n)
1 1
2 15
3 25
4 33
5 45
6 51
7 69
8 87
9 91
10 99
11 105
12 121
13 123
14 133
15 135
16 141
17 147
18 153
19 159
20 165
21 177
22 195
23 207
24 213
25 217
26 231
27 247
28 249
29 255
30 259
31 261
32 267
33 285
34 289
35 297
36 301
37 303
38 315
39 321
40 339
41 343
42 345
43 357
44 369
45 375
46 393
47 403
48 405
49 411
50 423
51 427
52 429
53 435
54 441
55 447
56 459
57 465
58 469
59 477
60 481
61 483
62 495
63 501
64 507
65 511
66 519

List of values

[1, 15, 25, 33, 45, 51, 69, 87, 91, 99, 105, 121, 123, 133, 135, 141, 147, 153, 159, 165, 177, 195, 207, 213, 217, 231, 247, 249, 255, 259, 261, 267, 285, 289, 297, 301, 303, 315, 321, 339, 343, 345, 357, 369, 375, 393, 403, 405, 411, 423, 427, 429, 435, 441, 447, 459, 465, 469, 477, 481, 483, 495, 501, 507, 511, 519]