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.

A209224 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 0 and 1 1 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 15
12 81
13 60
14 81
15 13
16 25
17 225
18 100
19 126
20 169
21 19
22 40
23 625
24 240
25 196
26 234
27 361
28 28
29 64
30 1600
31 576
32 504
33 324
34 456
35 784
36 41
37 104
38 4096
39 1296
40 1296
41 900
42 576
43 896
44 1681
45 60
46 169
47 10816
48 2916
49 3312
50 2500
51 1776
52 1024
53 1722
54 3600
55 88
56 273

List of values

[2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 15, 81, 60, 81, 13, 25, 225, 100, 126, 169, 19, 40, 625, 240, 196, 234, 361, 28, 64, 1600, 576, 504, 324, 456, 784, 41, 104, 4096, 1296, 1296, 900, 576, 896, 1681, 60, 169, 10816, 2916, 3312, 2500, 1776, 1024, 1722, 3600, 88, 273]