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.

A118142 Numbers n such that a perfect n X n parity pattern exists.

Table of values

n a(n)
1 4
2 5
3 9
4 11
5 16
6 19
7 23
8 29
9 30
10 32
11 33
12 39
13 47
14 59
15 61
16 62
17 64
18 65
19 67
20 79
21 84
22 95
23 101
24 119
25 123
26 125
27 126
28 128
29 129
30 131
31 135
32 154
33 159
34 164
35 169
36 170
37 185
38 191
39 203
40 204
41 239
42 247
43 251
44 253
45 254
46 256
47 257
48 259

List of values

[4, 5, 9, 11, 16, 19, 23, 29, 30, 32, 33, 39, 47, 59, 61, 62, 64, 65, 67, 79, 84, 95, 101, 119, 123, 125, 126, 128, 129, 131, 135, 154, 159, 164, 169, 170, 185, 191, 203, 204, 239, 247, 251, 253, 254, 256, 257, 259]