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.

A105441 Numbers with at least two odd prime factors (not necessarily distinct).

Table of values

n a(n)
1 9
2 15
3 18
4 21
5 25
6 27
7 30
8 33
9 35
10 36
11 39
12 42
13 45
14 49
15 50
16 51
17 54
18 55
19 57
20 60
21 63
22 65
23 66
24 69
25 70
26 72
27 75
28 77
29 78
30 81
31 84
32 85
33 87
34 90
35 91
36 93
37 95
38 98
39 99
40 100
41 102
42 105
43 108
44 110
45 111
46 114
47 115
48 117
49 119
50 120
51 121
52 123
53 125
54 126
55 129
56 130
57 132
58 133
59 135
60 138
61 140
62 141

List of values

[9, 15, 18, 21, 25, 27, 30, 33, 35, 36, 39, 42, 45, 49, 50, 51, 54, 55, 57, 60, 63, 65, 66, 69, 70, 72, 75, 77, 78, 81, 84, 85, 87, 90, 91, 93, 95, 98, 99, 100, 102, 105, 108, 110, 111, 114, 115, 117, 119, 120, 121, 123, 125, 126, 129, 130, 132, 133, 135, 138, 140, 141]

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

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