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.

A137621 Divisors of nonprimes not occurring earlier.

Table of values

n a(n)
1 1
2 2
3 4
4 3
5 6
6 8
7 9
8 5
9 10
10 12
11 7
12 14
13 15
14 16
15 18
16 20
17 21
18 11
19 22
20 24
21 25
22 13
23 26
24 27
25 28
26 30
27 32
28 33
29 17
30 34
31 35
32 36
33 19
34 38
35 39
36 40
37 42
38 44
39 45
40 23
41 46
42 48
43 49
44 50
45 51
46 52
47 54
48 55
49 56
50 57
51 29
52 58
53 60
54 31
55 62
56 63
57 64
58 65
59 66
60 68
61 69
62 70
63 72
64 37
65 74
66 75
67 76
68 77
69 78
70 80
71 81
72 41

List of values

[1, 2, 4, 3, 6, 8, 9, 5, 10, 12, 7, 14, 15, 16, 18, 20, 21, 11, 22, 24, 25, 13, 26, 27, 28, 30, 32, 33, 17, 34, 35, 36, 19, 38, 39, 40, 42, 44, 45, 23, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 29, 58, 60, 31, 62, 63, 64, 65, 66, 68, 69, 70, 72, 37, 74, 75, 76, 77, 78, 80, 81, 41]

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

Content is available under The OEIS End-User License Agreement.