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.

A209100 T(n,k)=Number of nXk 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.

Table of values

n a(n)
1 1
2 2
3 2
4 5
5 11
6 5
7 14
8 76
9 82
10 14
11 41
12 520
13 1326
14 612
15 41
16 122
17 3552
18 20928
19 23248
20 4568
21 122
22 365
23 24256
24 329064
25 849548
26 407832
27 34096
28 365
29 1094
30 165632
31 5171088
32 30836932
33 34538488
34 7154944
35 254496
36 1094
37 3281
38 1131008
39 81254376
40 1118366188

List of values

[1, 2, 2, 5, 11, 5, 14, 76, 82, 14, 41, 520, 1326, 612, 41, 122, 3552, 20928, 23248, 4568, 122, 365, 24256, 329064, 849548, 407832, 34096, 365, 1094, 165632, 5171088, 30836932, 34538488, 7154944, 254496, 1094, 3281, 1131008, 81254376, 1118366188]