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.

A202742 T(n,k)=Number of nXk 0..1 arrays with row sums equal and column sums unequal to adjacent columns.

Table of values

n a(n)
1 2
2 2
3 2
4 2
5 2
6 2
7 2
8 6
9 8
10 2
11 2
12 22
13 38
14 10
15 2
16 2
17 54
18 140
19 86
20 32
21 2
22 2
23 102
24 638
25 838
26 282
27 44
28 2
29 2
30 214
31 3032
32 6870
33 5092
34 1074
35 128
36 2
37 2
38 582
39 14258
40 62398
41 75302
42 29680
43 2802
44 186
45 2
46 2
47 1590
48 70136
49 613950
50 1375912
51 827502
52 183220
53 8694
54 512
55 2
56 2
57 3814

List of values

[2, 2, 2, 2, 2, 2, 2, 6, 8, 2, 2, 22, 38, 10, 2, 2, 54, 140, 86, 32, 2, 2, 102, 638, 838, 282, 44, 2, 2, 214, 3032, 6870, 5092, 1074, 128, 2, 2, 582, 14258, 62398, 75302, 29680, 2802, 186, 2, 2, 1590, 70136, 613950, 1375912, 827502, 183220, 8694, 512, 2, 2, 3814]