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.

A105935 Indices of Lucas 7-step numbers A104621 which have a nontrivial divisor in common with index.

Table of values

n a(n)
1 6
2 12
3 18
4 20
5 21
6 33
7 36
8 42
9 54
10 57
11 60
12 65
13 87
14 93
15 99
16 100
17 104
18 105
19 108
20 111
21 141
22 147
23 152
24 153
25 155
26 156
27 162
28 165
29 171
30 177
31 180
32 189
33 192
34 195
35 210
36 215
37 220
38 222
39 230
40 235
41 238
42 240
43 249
44 255
45 261
46 264
47 273
48 276
49 279
50 280
51 286
52 294
53 295
54 297
55 300

List of values

[6, 12, 18, 20, 21, 33, 36, 42, 54, 57, 60, 65, 87, 93, 99, 100, 104, 105, 108, 111, 141, 147, 152, 153, 155, 156, 162, 165, 171, 177, 180, 189, 192, 195, 210, 215, 220, 222, 230, 235, 238, 240, 249, 255, 261, 264, 273, 276, 279, 280, 286, 294, 295, 297, 300]