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.

A049096 Numbers k such that 2^k + 1 is divisible by a square > 1.

Table of values

n a(n)
1 3
2 9
3 10
4 15
5 21
6 27
7 30
8 33
9 39
10 45
11 50
12 51
13 55
14 57
15 63
16 68
17 69
18 70
19 75
20 78
21 81
22 87
23 90
24 93
25 99
26 105
27 110
28 111
29 117
30 123
31 129
32 130
33 135
34 141
35 147
36 150
37 153
38 159
39 165
40 170
41 171
42 177
43 182
44 183
45 189
46 190
47 195
48 201
49 204
50 207
51 210
52 213
53 219
54 225
55 230
56 231
57 234
58 237
59 243

List of values

[3, 9, 10, 15, 21, 27, 30, 33, 39, 45, 50, 51, 55, 57, 63, 68, 69, 70, 75, 78, 81, 87, 90, 93, 99, 105, 110, 111, 117, 123, 129, 130, 135, 141, 147, 150, 153, 159, 165, 170, 171, 177, 182, 183, 189, 190, 195, 201, 204, 207, 210, 213, 219, 225, 230, 231, 234, 237, 243]