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.

A039653 a(0) = 0; for n > 0, a(n) = sigma(n)-1.

Table of values

n a(n)
0 0
1 0
2 2
3 3
4 6
5 5
6 11
7 7
8 14
9 12
10 17
11 11
12 27
13 13
14 23
15 23
16 30
17 17
18 38
19 19
20 41
21 31
22 35
23 23
24 59
25 30
26 41
27 39
28 55
29 29
30 71
31 31
32 62
33 47
34 53
35 47
36 90
37 37
38 59
39 55
40 89
41 41
42 95
43 43
44 83
45 77
46 71
47 47
48 123
49 56
50 92
51 71
52 97
53 53
54 119
55 71
56 119
57 79
58 89
59 59
60 167
61 61
62 95
63 103
64 126
65 83
66 143
67 67
68 125
69 95

List of values

[0, 0, 2, 3, 6, 5, 11, 7, 14, 12, 17, 11, 27, 13, 23, 23, 30, 17, 38, 19, 41, 31, 35, 23, 59, 30, 41, 39, 55, 29, 71, 31, 62, 47, 53, 47, 90, 37, 59, 55, 89, 41, 95, 43, 83, 77, 71, 47, 123, 56, 92, 71, 97, 53, 119, 71, 119, 79, 89, 59, 167, 61, 95, 103, 126, 83, 143, 67, 125, 95]

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

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