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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.

A085119 a(n) = number at which the standard Ackermann function mod n stabilizes, or -1 if it does not stabilize.

Table of values

n a(n)
2 1
3 1
4 1
5 1
6 1
7 1
8 5
9 2
10 1
11 1
12 1
13 9
14 13
15 13
16 13
17 13
18 13
19 2
20 13
21 13
22 17
23 13
24 13
25 5
26 13
27 13
28 13
29 22
30 13
31 5
32 29
33 1
34 13
35 13
36 13
37 29
38 13
39 13
40 13
41 7
42 13
43 1
44 17
45 13
46 29
47 1
48 13
49 1
50 33
51 49
52 13
53 20
54 31
55 11
56 13
57 11
58 3
59 19
60 13
61 19
62 61
63 13
64 61
65 13
66 61
67 27
68 49
69 10
70 13
71 40
72 13
73 34
74 37

List of values

[1, 1, 1, 1, 1, 1, 5, 2, 1, 1, 1, 9, 13, 13, 13, 13, 13, 2, 13, 13, 17, 13, 13, 5, 13, 13, 13, 22, 13, 5, 29, 1, 13, 13, 13, 29, 13, 13, 13, 7, 13, 1, 17, 13, 29, 1, 13, 1, 33, 49, 13, 20, 31, 11, 13, 11, 3, 19, 13, 19, 61, 13, 61, 13, 61, 27, 49, 10, 13, 40, 13, 34, 37]

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