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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.

A124389 A square array of Kolakoski string lengths, read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 3
12 1
13 1
14 1
15 1
16 3
17 5
18 1
19 1
20 1
21 1
22 7
23 5
24 7
25 1
26 1
27 1
28 1
29 9
30 17
31 7
32 9
33 1
34 1
35 1
36 1
37 17
38 25
39 31
40 9
41 11
42 1
43 1
44 1
45 1
46 25
47 61
48 49
49 49
50 11
51 13
52 1
53 1
54 1
55 1
56 43
57 109
58 145
59 81
60 71
61 13
62 15
63 1
64 1
65 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 3, 5, 1, 1, 1, 1, 7, 5, 7, 1, 1, 1, 1, 9, 17, 7, 9, 1, 1, 1, 1, 17, 25, 31, 9, 11, 1, 1, 1, 1, 25, 61, 49, 49, 11, 13, 1, 1, 1, 1, 43, 109, 145, 81, 71, 13, 15, 1, 1, 1]