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.

A231586 T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors.

Table of values

n a(n)
1 4
2 4
3 4
4 16
5 28
6 16
7 50
8 124
9 124
10 50
11 144
12 602
13 2352
14 602
15 144
16 422
17 2776
18 32650
19 32650
20 2776
21 422
22 1268
23 12922
24 381076
25 1245468
26 381076
27 12922
28 1268
29 3823
30 60720
31 5618444
32 38768838
33 38768838
34 5618444
35 60720
36 3823
37 11472
38 286047
39 82479418
40 1453028265

List of values

[4, 4, 4, 16, 28, 16, 50, 124, 124, 50, 144, 602, 2352, 602, 144, 422, 2776, 32650, 32650, 2776, 422, 1268, 12922, 381076, 1245468, 381076, 12922, 1268, 3823, 60720, 5618444, 38768838, 38768838, 5618444, 60720, 3823, 11472, 286047, 82479418, 1453028265]