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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.

A183342 T(n,k)=Number of nXk binary arrays with each 1 adjacent to exactly one 1 vertically and one 1 horizontally.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 3
9 3
10 1
11 1
12 4
13 5
14 4
15 1
16 1
17 6
18 7
19 7
20 6
21 1
22 1
23 9
24 13
25 12
26 13
27 9
28 1
29 1
30 13
31 23
32 26
33 26
34 23
35 13
36 1
37 1
38 19
39 37
40 51
41 72
42 51
43 37
44 19
45 1
46 1
47 28
48 63
49 97
50 175
51 175
52 97
53 63
54 28
55 1
56 1
57 41
58 109
59 193
60 407
61 513
62 407
63 193
64 109
65 41
66 1
67 1
68 60
69 183
70 380
71 1005
72 1397
73 1397
74 1005
75 380

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 5, 4, 1, 1, 6, 7, 7, 6, 1, 1, 9, 13, 12, 13, 9, 1, 1, 13, 23, 26, 26, 23, 13, 1, 1, 19, 37, 51, 72, 51, 37, 19, 1, 1, 28, 63, 97, 175, 175, 97, 63, 28, 1, 1, 41, 109, 193, 407, 513, 407, 193, 109, 41, 1, 1, 60, 183, 380, 1005, 1397, 1397, 1005, 380]