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.

A301662 T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1 or 4 horizontally or vertically adjacent elements, with upper left element zero.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 3
6 3
7 5
8 4
9 4
10 5
11 8
12 6
13 6
14 6
15 8
16 13
17 9
18 9
19 9
20 9
21 13
22 21
23 14
24 15
25 13
26 15
27 14
28 21
29 34
30 22
31 26
32 24
33 24
34 26
35 22
36 34
37 55
38 35
39 46
40 45
41 46
42 45
43 46
44 35
45 55
46 89
47 56
48 83
49 89
50 99
51 99
52 89
53 83
54 56
55 89
56 144
57 90
58 151
59 182
60 223
61 254
62 223
63 182
64 151
65 90
66 144
67 233
68 145
69 276
70 373
71 528
72 696

List of values

[1, 2, 2, 3, 3, 3, 5, 4, 4, 5, 8, 6, 6, 6, 8, 13, 9, 9, 9, 9, 13, 21, 14, 15, 13, 15, 14, 21, 34, 22, 26, 24, 24, 26, 22, 34, 55, 35, 46, 45, 46, 45, 46, 35, 55, 89, 56, 83, 89, 99, 99, 89, 83, 56, 89, 144, 90, 151, 182, 223, 254, 223, 182, 151, 90, 144, 233, 145, 276, 373, 528, 696]