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.

A207426 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 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 15
12 81
13 114
14 81
15 14
16 25
17 225
18 361
19 351
20 196
21 21
22 40
23 625
24 1425
25 1521
26 1162
27 441
28 31
29 64
30 1600
31 5625
32 8463
33 6889
34 3633
35 961
36 46
37 104
38 4096
39 20550
40 47089
41 55361
42 29929
43 11067
44 2116
45 68
46 169
47 10816
48 75076
49 241087
50 444889
51 341329

List of values

[2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 15, 81, 114, 81, 14, 25, 225, 361, 351, 196, 21, 40, 625, 1425, 1521, 1162, 441, 31, 64, 1600, 5625, 8463, 6889, 3633, 961, 46, 104, 4096, 20550, 47089, 55361, 29929, 11067, 2116, 68, 169, 10816, 75076, 241087, 444889, 341329]