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.

A368817 Sum of the refactorable numbers less than n that do not divide n.

Table of values

n a(n)
1 0
2 0
3 2
4 0
5 2
6 0
7 2
8 0
9 10
10 17
11 19
12 17
13 31
14 29
15 31
16 21
17 31
18 20
19 49
20 47
21 49
22 47
23 49
24 27
25 73
26 71
27 64
28 71
29 73
30 71
31 73
32 63
33 73
34 71
35 73
36 32
37 109
38 107
39 109
40 99
41 149
42 147
43 149
44 147
45 140
46 147
47 149
48 103
49 149
50 147
51 149
52 147
53 149
54 120
55 149
56 139
57 205
58 203
59 205
60 191
61 265
62 263

List of values

[0, 0, 2, 0, 2, 0, 2, 0, 10, 17, 19, 17, 31, 29, 31, 21, 31, 20, 49, 47, 49, 47, 49, 27, 73, 71, 64, 71, 73, 71, 73, 63, 73, 71, 73, 32, 109, 107, 109, 99, 149, 147, 149, 147, 140, 147, 149, 103, 149, 147, 149, 147, 149, 120, 149, 139, 205, 203, 205, 191, 265, 263]

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

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