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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.

A182297 Wieferich numbers (2): positive odd integers q such that q and (2^A002326((q-1)/2)-1)/q are not relatively prime.

Table of values

n a(n)
1 21
2 39
3 55
4 57
5 105
6 111
7 147
8 155
9 165
10 171
11 183
12 195
13 201
14 203
15 205
16 219
17 231
18 237
19 253
20 273
21 285
22 291
23 301
24 305
25 309
26 327
27 333
28 355
29 357
30 385
31 399
32 417
33 429
34 453
35 465
36 483
37 489
38 495
39 497
40 505
41 507
42 525
43 543
44 555
45 579
46 597
47 605
48 609
49 615
50 627
51 633
52 651
53 655

List of values

[21, 39, 55, 57, 105, 111, 147, 155, 165, 171, 183, 195, 201, 203, 205, 219, 231, 237, 253, 273, 285, 291, 301, 305, 309, 327, 333, 355, 357, 385, 399, 417, 429, 453, 465, 483, 489, 495, 497, 505, 507, 525, 543, 555, 579, 597, 605, 609, 615, 627, 633, 651, 655]

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

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