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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.

A080684 Number of 13-smooth numbers <= n.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16, 17, 17, 18, 19, 20, 20, 21, 22, 23, 24, 25, 25, 26, 26, 27, 28, 28, 29, 30, 30, 30, 31, 32, 32, 33, 33, 34, 35, 35, 35, 36, 37, 38, 38, 39, 39, 40, 41, 42, 42, 42, 42, 43, 43, 43, 44, 45, 46, 47, 47, 47, 47, 48, 48, 49]

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

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