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.

A182843 Number of composite integers greater than or equal to n whose proper divisors are all less than n.

Table of values

n a(n)
1 0
2 0
3 1
4 3
5 3
6 6
7 6
8 10
9 10
10 11
11 11
12 16
13 16
14 22
15 22
16 23
17 23
18 30
19 30
20 38
21 38
22 39
23 39
24 48
25 48
26 50
27 50
28 51
29 51
30 61
31 61
32 72
33 72
34 73
35 73
36 75
37 75
38 87
39 87
40 88
41 88
42 101
43 101
44 115
45 115
46 116
47 116
48 131
49 131
50 134
51 134
52 135
53 135
54 151
55 151
56 153
57 153
58 154
59 154
60 171
61 171
62 189
63 189
64 190
65 190
66 192
67 192
68 211
69 211

List of values

[0, 0, 1, 3, 3, 6, 6, 10, 10, 11, 11, 16, 16, 22, 22, 23, 23, 30, 30, 38, 38, 39, 39, 48, 48, 50, 50, 51, 51, 61, 61, 72, 72, 73, 73, 75, 75, 87, 87, 88, 88, 101, 101, 115, 115, 116, 116, 131, 131, 134, 134, 135, 135, 151, 151, 153, 153, 154, 154, 171, 171, 189, 189, 190, 190, 192, 192, 211, 211]

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

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