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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.

A330292 a(n) = number of integers 1 <= k < n such that omega(k) <= omega(n), where omega = A001221.

Table of values

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

List of values

[0, 1, 2, 3, 4, 5, 5, 6, 7, 9, 8, 11, 9, 13, 14, 10, 11, 17, 12, 19, 20, 21, 13, 23, 14, 25, 15, 27, 16, 29, 17, 18, 31, 32, 33, 34, 19, 36, 37, 38, 20, 41, 21, 41, 42, 43, 22, 45, 23, 47, 48, 49, 24, 51, 52, 53, 54, 55, 25, 59, 26, 58, 59, 27, 61, 65, 28, 63, 64]

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

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