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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.

A322837 Number of positive integers less than n with fewer distinct prime factors than n.

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 1
6 5
7 1
8 1
9 1
10 8
11 1
12 9
13 1
14 10
15 10
16 1
17 1
18 12
19 1
20 13
21 13
22 13
23 1
24 14
25 1
26 15
27 1
28 16
29 1
30 29
31 1
32 1
33 19
34 19
35 19
36 19
37 1
38 20
39 20
40 20
41 1
42 40
43 1
44 22
45 22
46 22
47 1
48 23
49 1
50 24
51 24
52 24
53 1
54 25
55 25
56 25
57 25
58 25
59 1
60 57
61 1
62 27
63 27
64 1
65 28
66 62
67 1
68 29
69 29
70 65
71 1
72 30
73 1
74 31

List of values

[0, 1, 1, 1, 1, 5, 1, 1, 1, 8, 1, 9, 1, 10, 10, 1, 1, 12, 1, 13, 13, 13, 1, 14, 1, 15, 1, 16, 1, 29, 1, 1, 19, 19, 19, 19, 1, 20, 20, 20, 1, 40, 1, 22, 22, 22, 1, 23, 1, 24, 24, 24, 1, 25, 25, 25, 25, 25, 1, 57, 1, 27, 27, 1, 28, 62, 1, 29, 29, 65, 1, 30, 1, 31]

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

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