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.

A196707 T(n,k) = Number of n X k 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 3,1,0,4,2 for x=0,1,2,3,4.

Table of values

n a(n)
1 1
2 2
3 2
4 4
5 11
6 4
7 6
8 38
9 38
10 6
11 12
12 136
13 207
14 136
15 12
16 22
17 488
18 1366
19 1366
20 488
21 22
22 40
23 1744
24 8672
25 16676
26 8672
27 1744
28 40
29 74
30 6208
31 55436
32 193326
33 193326
34 55436
35 6208
36 74
37 136
38 22202
39 353591
40 2264381
41 4114365
42 2264381
43 353591
44 22202
45 136
46 250
47 79292

List of values

[1, 2, 2, 4, 11, 4, 6, 38, 38, 6, 12, 136, 207, 136, 12, 22, 488, 1366, 1366, 488, 22, 40, 1744, 8672, 16676, 8672, 1744, 40, 74, 6208, 55436, 193326, 193326, 55436, 6208, 74, 136, 22202, 353591, 2264381, 4114365, 2264381, 353591, 22202, 136, 250, 79292]