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.

A207442 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 1 0 0 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 14
12 81
13 108
14 81
15 14
16 21
17 196
18 323
19 333
20 196
21 22
22 31
23 441
24 1058
25 1360
26 1144
27 484
28 35
29 46
30 961
31 3223
32 6092
33 6525
34 4048
35 1225
36 56
37 68
38 2116
39 9515
40 25689
41 41092
42 32393
43 14743
44 3136
45 90
46 100
47 4624
48 28426
49 105690
50 243981
51 287176

List of values

[2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 14, 81, 108, 81, 14, 21, 196, 323, 333, 196, 22, 31, 441, 1058, 1360, 1144, 484, 35, 46, 961, 3223, 6092, 6525, 4048, 1225, 56, 68, 2116, 9515, 25689, 41092, 32393, 14743, 3136, 90, 100, 4624, 28426, 105690, 243981, 287176]