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.

A284199 T(n,k) = Number of n X k 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 4
6 3
7 6
8 13
9 13
10 6
11 10
12 40
13 43
14 40
15 10
16 19
17 131
18 412
19 412
20 131
21 19
22 33
23 455
24 1919
25 5268
26 1919
27 455
28 33
29 62
30 1611
31 18842
32 71181
33 71181
34 18842
35 1611
36 62
37 112
38 5818
39 105367
40 1001047
41 1488503
42 1001047
43 105367
44 5818
45 112
46 212
47 21328
48 983238

List of values

[1, 2, 2, 3, 4, 3, 6, 13, 13, 6, 10, 40, 43, 40, 10, 19, 131, 412, 412, 131, 19, 33, 455, 1919, 5268, 1919, 455, 33, 62, 1611, 18842, 71181, 71181, 18842, 1611, 62, 112, 5818, 105367, 1001047, 1488503, 1001047, 105367, 5818, 112, 212, 21328, 983238]