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.

A053868 Numbers whose sum of proper divisors is odd.

Table of values

n a(n)
1 2
2 3
3 4
4 5
5 7
6 8
7 11
8 13
9 15
10 16
11 17
12 18
13 19
14 21
15 23
16 27
17 29
18 31
19 32
20 33
21 35
22 36
23 37
24 39
25 41
26 43
27 45
28 47
29 50
30 51
31 53
32 55
33 57
34 59
35 61
36 63
37 64
38 65
39 67
40 69
41 71
42 72
43 73
44 75
45 77
46 79
47 83
48 85
49 87
50 89
51 91
52 93
53 95
54 97
55 98
56 99
57 100
58 101
59 103
60 105
61 107
62 109
63 111
64 113
65 115
66 117
67 119

List of values

[2, 3, 4, 5, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 23, 27, 29, 31, 32, 33, 35, 36, 37, 39, 41, 43, 45, 47, 50, 51, 53, 55, 57, 59, 61, 63, 64, 65, 67, 69, 71, 72, 73, 75, 77, 79, 83, 85, 87, 89, 91, 93, 95, 97, 98, 99, 100, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119]

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

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