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.

A007238 Length of longest chain of subgroups in S_n.

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 5
6 6
7 7
8 10
9 11
10 12
11 13
12 15
13 16
14 17
15 18
16 22
17 23
18 24
19 25
20 27
21 28
22 29
23 30
24 33
25 34
26 35
27 36
28 38
29 39
30 40
31 41
32 46
33 47
34 48
35 49
36 51
37 52
38 53
39 54
40 57
41 58
42 59
43 60
44 62
45 63
46 64
47 65
48 69
49 70
50 71
51 72
52 74
53 75
54 76
55 77
56 80
57 81
58 82
59 83
60 85
61 86
62 87
63 88
64 94
65 95
66 96
67 97
68 99
69 100
70 101

List of values

[0, 1, 2, 4, 5, 6, 7, 10, 11, 12, 13, 15, 16, 17, 18, 22, 23, 24, 25, 27, 28, 29, 30, 33, 34, 35, 36, 38, 39, 40, 41, 46, 47, 48, 49, 51, 52, 53, 54, 57, 58, 59, 60, 62, 63, 64, 65, 69, 70, 71, 72, 74, 75, 76, 77, 80, 81, 82, 83, 85, 86, 87, 88, 94, 95, 96, 97, 99, 100, 101]

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

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