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.

A280069 T(n,k)=Number of nXk 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 2
8 2
9 2
10 2
11 3
12 4
13 5
14 4
15 3
16 5
17 9
18 15
19 15
20 9
21 5
22 8
23 19
24 39
25 52
26 39
27 19
28 8
29 13
30 41
31 104
32 170
33 170
34 104
35 41
36 13
37 21
38 88
39 281
40 603
41 790
42 603
43 281
44 88
45 21
46 34
47 189
48 771
49 2157
50 3729
51 3729
52 2157
53 771
54 189
55 34
56 55
57 406
58 2122
59 7777
60 17468
61 23564
62 17468
63 7777
64 2122

List of values

[1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 4, 5, 4, 3, 5, 9, 15, 15, 9, 5, 8, 19, 39, 52, 39, 19, 8, 13, 41, 104, 170, 170, 104, 41, 13, 21, 88, 281, 603, 790, 603, 281, 88, 21, 34, 189, 771, 2157, 3729, 3729, 2157, 771, 189, 34, 55, 406, 2122, 7777, 17468, 23564, 17468, 7777, 2122]