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.

A186462 T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.

Table of values

n a(n)
1 16
2 21
3 21
4 42
5 30
6 42
7 61
8 51
9 51
10 61
11 106
12 88
13 111
14 88
15 106
16 151
17 128
18 162
19 162
20 128
21 151
22 245
23 197
24 270
25 309
26 270
27 197
28 245
29 359
30 292
31 362
32 449
33 449
34 362
35 292
36 359
37 567
38 457
39 590
40 673
41 797
42 673
43 590
44 457
45 567
46 840
47 688
48 846
49 945
50 1061
51 1061
52 945
53 846
54 688
55 840
56 1301

List of values

[16, 21, 21, 42, 30, 42, 61, 51, 51, 61, 106, 88, 111, 88, 106, 151, 128, 162, 162, 128, 151, 245, 197, 270, 309, 270, 197, 245, 359, 292, 362, 449, 449, 362, 292, 359, 567, 457, 590, 673, 797, 673, 590, 457, 567, 840, 688, 846, 945, 1061, 1061, 945, 846, 688, 840, 1301]