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.

A207269 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 0 1 vertically.

Table of values

n a(n)
1 2
2 4
3 4
4 6
5 16
6 6
7 9
8 36
9 36
10 9
11 13
12 81
13 82
14 81
15 14
16 18
17 169
18 217
19 193
20 196
21 21
22 25
23 324
24 499
25 611
26 488
27 441
28 31
29 34
30 625
31 1014
32 1602
33 1910
34 1087
35 961
36 46
37 46
38 1156
39 2141
40 3513
41 5904
42 5132
43 2305
44 2116
45 68
46 62
47 2116
48 4188
49 8327
50 14184
51 18055
52 13067
53 4932
54 4624
55 100
56 83

List of values

[2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 82, 81, 14, 18, 169, 217, 193, 196, 21, 25, 324, 499, 611, 488, 441, 31, 34, 625, 1014, 1602, 1910, 1087, 961, 46, 46, 1156, 2141, 3513, 5904, 5132, 2305, 2116, 68, 62, 2116, 4188, 8327, 14184, 18055, 13067, 4932, 4624, 100, 83]