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.

A208142 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 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 8
11 12
12 81
13 108
14 64
15 10
16 16
17 144
18 324
19 240
20 100
21 12
22 20
23 256
24 720
25 900
26 450
27 144
28 14
29 25
30 400
31 1600
32 2400
33 2025
34 756
35 196
36 16
37 30
38 625
39 3000
40 6400
41 6300
42 3969
43 1176
44 256
45 18
46 36
47 900
48 5625
49 14000
50 19600
51 14112
52 7056
53 1728
54 324
55 20
56 42
57 1296

List of values

[2, 4, 4, 6, 16, 6, 9, 36, 36, 8, 12, 81, 108, 64, 10, 16, 144, 324, 240, 100, 12, 20, 256, 720, 900, 450, 144, 14, 25, 400, 1600, 2400, 2025, 756, 196, 16, 30, 625, 3000, 6400, 6300, 3969, 1176, 256, 18, 36, 900, 5625, 14000, 19600, 14112, 7056, 1728, 324, 20, 42, 1296]