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.

A269757 Number of black cells after n moves of Langton's ant on an infinite hexagonal grid, starting with only white cells.

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

List of values

[0, 1, 2, 3, 4, 5, 6, 5, 6, 7, 8, 9, 8, 7, 8, 9, 10, 11, 10, 9, 10, 11, 12, 13, 12, 13, 14, 15, 16, 17, 18, 17, 16, 17, 18, 19, 20, 19, 18, 19, 20, 21, 22, 21, 20, 19, 18, 19, 20, 21, 22, 21, 20, 21, 22, 23, 24, 23, 22, 21, 20, 21, 22, 23, 24, 23, 22, 23, 24, 25, 26]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.