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.

A208840 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 1 and 1 1 0 vertically.

Table of values

n a(n)
1 2
2 4
3 4
4 6
5 16
6 6
7 10
8 36
9 36
10 9
11 16
12 100
13 78
14 81
15 14
16 26
17 256
18 282
19 171
20 196
21 22
22 42
23 676
24 768
25 855
26 406
27 484
28 35
29 68
30 1764
31 2430
32 2421
33 3010
34 990
35 1225
36 56
37 110
38 4624
39 7086
40 9801
41 8736
42 11242
43 2485
44 3136
45 90
46 178
47 12100
48 21588
49 31419
50 49126
51 33088
52 44275

List of values

[2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 78, 81, 14, 26, 256, 282, 171, 196, 22, 42, 676, 768, 855, 406, 484, 35, 68, 1764, 2430, 2421, 3010, 990, 1225, 56, 110, 4624, 7086, 9801, 8736, 11242, 2485, 3136, 90, 178, 12100, 21588, 31419, 49126, 33088, 44275]