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.

A231199 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order.

Table of values

n a(n)
1 9
2 67
3 67
4 538
5 1413
6 538
7 4264
8 31665
9 31665
10 4264
11 33868
12 704428
13 2001156
14 704428
15 33868
16 268936
17 15698874
18 125862699
19 125862699
20 15698874
21 268936
22 2135636
23 349736292
24 7925306181
25 22370911245
26 7925306181
27 349736292
28 2135636
29 16959144

List of values

[9, 67, 67, 538, 1413, 538, 4264, 31665, 31665, 4264, 33868, 704428, 2001156, 704428, 33868, 268936, 15698874, 125862699, 125862699, 15698874, 268936, 2135636, 349736292, 7925306181, 22370911245, 7925306181, 349736292, 2135636, 16959144]