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.

A232309 T(n,k)=Number of nXk 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally, vertically or antidiagonally.

Table of values

n a(n)
1 1
2 3
3 3
4 7
5 37
6 7
7 15
8 257
9 257
10 15
11 33
12 1915
13 5149
14 1915
15 33
16 73
17 14223
18 107047
19 107047
20 14223
21 73
22 161
23 105411
24 2245709
25 6363511
26 2245709
27 105411
28 161
29 355
30 781873
31 46996227
32 382995685
33 382995685
34 46996227
35 781873
36 355
37 783
38 5798587
39 983668985

List of values

[1, 3, 3, 7, 37, 7, 15, 257, 257, 15, 33, 1915, 5149, 1915, 33, 73, 14223, 107047, 107047, 14223, 73, 161, 105411, 2245709, 6363511, 2245709, 105411, 161, 355, 781873, 46996227, 382995685, 382995685, 46996227, 781873, 355, 783, 5798587, 983668985]