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.

A282885 T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 2
6 1
7 2
8 8
9 8
10 2
11 5
12 32
13 74
14 32
15 5
16 12
17 122
18 430
19 430
20 122
21 12
22 26
23 416
24 2426
25 3762
26 2426
27 416
28 26
29 56
30 1414
31 13062
32 34314
33 34314
34 13062
35 1414
36 56
37 118
38 4626
39 67676
40 286920
41 480995
42 286920
43 67676
44 4626
45 118
46 244
47 14930
48 342972
49 2342046
50 6296324

List of values

[0, 0, 0, 1, 2, 1, 2, 8, 8, 2, 5, 32, 74, 32, 5, 12, 122, 430, 430, 122, 12, 26, 416, 2426, 3762, 2426, 416, 26, 56, 1414, 13062, 34314, 34314, 13062, 1414, 56, 118, 4626, 67676, 286920, 480995, 286920, 67676, 4626, 118, 244, 14930, 342972, 2342046, 6296324]