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.

A308973 Langton's ant on a truncated square tiling: number of black cells after n moves of the ant when starting on an octagon and looking towards an edge where the tile meets another octagon.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 5
8 6
9 7
10 8
11 9
12 8
13 7
14 8
15 9
16 10
17 11
18 10
19 11
20 10
21 9
22 10
23 11
24 12
25 13
26 14
27 15
28 14
29 15
30 16
31 17
32 18
33 17
34 16
35 17
36 18
37 17
38 16
39 17
40 18
41 19
42 20
43 21
44 22
45 21
46 22
47 23
48 24
49 23
50 22
51 23
52 24
53 25
54 26
55 27
56 28
57 27
58 28
59 29
60 30
61 29
62 28
63 29
64 30
65 31
66 32
67 33
68 34

List of values

[0, 1, 2, 3, 4, 5, 6, 5, 6, 7, 8, 9, 8, 7, 8, 9, 10, 11, 10, 11, 10, 9, 10, 11, 12, 13, 14, 15, 14, 15, 16, 17, 18, 17, 16, 17, 18, 17, 16, 17, 18, 19, 20, 21, 22, 21, 22, 23, 24, 23, 22, 23, 24, 25, 26, 27, 28, 27, 28, 29, 30, 29, 28, 29, 30, 31, 32, 33, 34]