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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.

A355620 a(n) is the sum of the divisors of n whose decimal expansions appear as substrings in the decimal expansion of n.

Table of values

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

List of values

[1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 14, 15, 21, 17, 18, 19, 20, 22, 22, 24, 23, 30, 30, 28, 27, 30, 29, 33, 32, 34, 36, 34, 40, 45, 37, 38, 42, 44, 42, 44, 43, 48, 50, 46, 47, 60, 49, 55, 52, 54, 53, 54, 60, 56, 57, 58, 59, 66, 62, 64, 66, 68, 70, 72, 67]

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

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