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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.

A309681 Lexically least sequence such that a(n) next appears at index n+a(n+1) and such that a(1)=2.

Table of values

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

List of values

[2, 4, 5, 6, 2, 6, 4, 13, 5, 6, 2, 6, 13, 9, 5, 18, 2, 18, 9, 4, 19, 13, 9, 17, 6, 20, 18, 26, 30, 17, 13, 35, 5, 19, 2, 19, 35, 23, 4, 9, 47, 23, 17, 20, 6, 30, 50, 4, 60, 20, 50, 5, 18, 2, 18, 50, 41, 26, 23, 35, 7, 42, 17, 47, 21, 13, 35, 37, 60, 5, 19, 2, 19, 60, 6]

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

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