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.

A362830 Number of bases b with 2 <= b < n such that n written in base b is a strictly increasing sequence of digits.

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 1
6 1
7 2
8 2
9 3
10 3
11 5
12 4
13 6
14 6
15 7
16 7
17 9
18 8
19 11
20 10
21 11
22 12
23 14
24 12
25 15
26 15
27 17
28 16
29 19
30 17
31 20
32 19
33 21
34 22
35 23
36 21
37 25
38 26
39 27
40 25
41 29
42 27
43 30
44 30
45 30
46 32
47 34
48 31
49 35
50 34
51 37
52 37
53 40
54 37
55 40
56 39
57 41
58 43
59 45
60 40
61 46
62 46
63 46
64 46
65 49
66 48
67 52
68 51
69 54
70 51

List of values

[0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 5, 4, 6, 6, 7, 7, 9, 8, 11, 10, 11, 12, 14, 12, 15, 15, 17, 16, 19, 17, 20, 19, 21, 22, 23, 21, 25, 26, 27, 25, 29, 27, 30, 30, 30, 32, 34, 31, 35, 34, 37, 37, 40, 37, 40, 39, 41, 43, 45, 40, 46, 46, 46, 46, 49, 48, 52, 51, 54, 51]

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

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