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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.

A371156 Length of the longest subsequence of 1, ..., n on which the Dedekind psi function (A001615) is nondecreasing.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 17, 17, 18, 18, 19, 19, 19, 20, 21, 21, 22, 22, 22, 22, 23, 23, 24, 24, 24, 25, 26, 26, 27, 27, 27, 27, 28, 28, 29, 29, 29, 29, 30, 30, 31, 31, 31, 32, 33, 33, 34, 34, 34]

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

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