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.

A379636 Triangle read by rows: T(n,k) (n >= k) is the maximum number of black cells in a n X k grid such that no black cell is edge-adjacent to more than one black cell.

Table of values

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

List of values

[1, 2, 2, 2, 4, 5, 3, 4, 7, 8, 4, 6, 9, 11, 14, 4, 6, 10, 12, 16, 18, 5, 8, 12, 15, 19, 22, 26, 6, 8, 14, 16, 22, 24, 30, 32, 6, 10, 15, 19, 24, 28, 33, 38, 42, 7, 10, 17, 20, 27, 30, 37, 40, 47, 50, 8, 12, 19, 23, 30, 34, 41, 46, 52, 57, 63, 8, 12, 20, 24, 32]