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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.

A039638 Fixed point of "k -> k/2 or (k-1)/2 until result is prime", starting with prime(n)-1.

Table of values

n a(n)
1 1
2 2
3 2
4 3
5 5
6 3
7 2
8 2
9 11
10 7
11 7
12 2
13 5
14 5
15 23
16 13
17 29
18 7
19 2
20 17
21 2
22 19
23 41
24 11
25 3
26 3
27 3
28 53
29 13
30 7
31 31
32 2
33 17
34 17
35 37
36 37
37 19
38 5
39 83
40 43
41 89
42 11
43 47
44 3
45 3
46 3
47 13
48 13
49 113
50 7
51 29
52 59
53 7
54 31
55 2
56 131
57 67
58 67
59 17
60 17
61 17
62 73
63 19
64 19
65 19
66 79
67 41
68 5
69 173
70 43
71 11
72 179
73 11
74 23
75 47
76 191

List of values

[1, 2, 2, 3, 5, 3, 2, 2, 11, 7, 7, 2, 5, 5, 23, 13, 29, 7, 2, 17, 2, 19, 41, 11, 3, 3, 3, 53, 13, 7, 31, 2, 17, 17, 37, 37, 19, 5, 83, 43, 89, 11, 47, 3, 3, 3, 13, 13, 113, 7, 29, 59, 7, 31, 2, 131, 67, 67, 17, 17, 17, 73, 19, 19, 19, 79, 41, 5, 173, 43, 11, 179, 11, 23, 47, 191]

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