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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.

A299612 T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 3
6 1
7 2
8 7
9 7
10 2
11 3
12 13
13 15
14 13
15 3
16 5
17 23
18 19
19 19
20 23
21 5
22 8
23 49
24 23
25 40
26 23
27 49
28 8
29 13
30 95
31 34
32 85
33 85
34 34
35 95
36 13
37 21
38 177
39 63
40 173
41 179
42 173
43 63
44 177
45 21
46 34
47 359
48 96
49 322
50 453
51 453
52 322
53 96
54 359
55 34
56 55
57 705
58 147
59 635
60 1006
61 1223
62 1006
63 635
64 147
65 705
66 55
67 89
68 1351

List of values

[0, 1, 1, 1, 3, 1, 2, 7, 7, 2, 3, 13, 15, 13, 3, 5, 23, 19, 19, 23, 5, 8, 49, 23, 40, 23, 49, 8, 13, 95, 34, 85, 85, 34, 95, 13, 21, 177, 63, 173, 179, 173, 63, 177, 21, 34, 359, 96, 322, 453, 453, 322, 96, 359, 34, 55, 705, 147, 635, 1006, 1223, 1006, 635, 147, 705, 55, 89, 1351]