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.

A086982 Numbers n such that 10^n+1 is not squarefree.

Table of values

n a(n)
1 11
2 21
3 33
4 39
5 55
6 63
7 77
8 99
9 105
10 117
11 121
12 136
13 143
14 147
15 165
16 171
17 187
18 189
19 195
20 202
21 209
22 231
23 243
24 253
25 273
26 275
27 292
28 297
29 315
30 319
31 341
32 351
33 357
34 363
35 385
36 399
37 406
38 407
39 408
40 429
41 441
42 451
43 473
44 483
45 495
46 507
47 513
48 517
49 525
50 539
51 548
52 561
53 567

List of values

[11, 21, 33, 39, 55, 63, 77, 99, 105, 117, 121, 136, 143, 147, 165, 171, 187, 189, 195, 202, 209, 231, 243, 253, 273, 275, 292, 297, 315, 319, 341, 351, 357, 363, 385, 399, 406, 407, 408, 429, 441, 451, 473, 483, 495, 507, 513, 517, 525, 539, 548, 561, 567]