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.

A117870 Square board sizes for which the lights out problem does not have a unique solution (counting solutions differing only by rotation and reflection as distinct).

Table of values

n a(n)
1 4
2 5
3 9
4 11
5 14
6 16
7 17
8 19
9 23
10 24
11 29
12 30
13 32
14 33
15 34
16 35
17 39
18 41
19 44
20 47
21 49
22 50
23 53
24 54
25 59
26 61
27 62
28 64
29 65
30 67
31 69
32 71
33 74
34 77
35 79
36 83
37 84
38 89
39 92
40 94
41 95
42 98
43 99
44 101
45 104
46 107
47 109
48 113
49 114
50 118
51 119
52 123
53 124
54 125
55 126
56 128
57 129
58 131
59 134
60 135
61 137
62 139
63 143

List of values

[4, 5, 9, 11, 14, 16, 17, 19, 23, 24, 29, 30, 32, 33, 34, 35, 39, 41, 44, 47, 49, 50, 53, 54, 59, 61, 62, 64, 65, 67, 69, 71, 74, 77, 79, 83, 84, 89, 92, 94, 95, 98, 99, 101, 104, 107, 109, 113, 114, 118, 119, 123, 124, 125, 126, 128, 129, 131, 134, 135, 137, 139, 143]