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.

A210510 Numbers not in the range of the sum of deficient divisors function.

Table of values

n a(n)
1 2
2 5
3 9
4 11
5 16
6 17
7 21
8 23
9 25
10 26
11 29
12 33
13 35
14 37
15 39
16 41
17 45
18 47
19 49
20 50
21 51
22 53
23 55
24 58
25 59
26 61
27 65
28 67
29 69
30 71
31 73
32 77
33 79
34 81
35 82
36 83
37 85
38 87
39 88
40 89
41 91
42 95
43 99
44 100
45 101
46 103
47 107
48 109
49 111
50 113
51 115
52 116
53 117
54 119
55 125
56 129
57 131
58 136
59 137
60 141
61 143
62 145
63 146
64 147
65 149
66 155
67 157
68 159

List of values

[2, 5, 9, 11, 16, 17, 21, 23, 25, 26, 29, 33, 35, 37, 39, 41, 45, 47, 49, 50, 51, 53, 55, 58, 59, 61, 65, 67, 69, 71, 73, 77, 79, 81, 82, 83, 85, 87, 88, 89, 91, 95, 99, 100, 101, 103, 107, 109, 111, 113, 115, 116, 117, 119, 125, 129, 131, 136, 137, 141, 143, 145, 146, 147, 149, 155, 157, 159]

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

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