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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.

A070038 a(n) = sum of divisors of n that are at least sqrt(n).

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 5
6 9
7 7
8 12
9 12
10 15
11 11
12 22
13 13
14 21
15 20
16 28
17 17
18 33
19 19
20 35
21 28
22 33
23 23
24 50
25 30
26 39
27 36
28 49
29 29
30 61
31 31
32 56
33 44
34 51
35 42
36 81
37 37
38 57
39 52
40 78
41 41
42 84
43 43
44 77
45 69
46 69
47 47
48 108
49 56
50 85
51 68
52 91
53 53
54 108
55 66
56 106
57 76
58 87
59 59
60 147
61 61
62 93
63 93
64 120
65 78
66 132
67 67
68 119
69 92

List of values

[1, 2, 3, 6, 5, 9, 7, 12, 12, 15, 11, 22, 13, 21, 20, 28, 17, 33, 19, 35, 28, 33, 23, 50, 30, 39, 36, 49, 29, 61, 31, 56, 44, 51, 42, 81, 37, 57, 52, 78, 41, 84, 43, 77, 69, 69, 47, 108, 56, 85, 68, 91, 53, 108, 66, 106, 76, 87, 59, 147, 61, 93, 93, 120, 78, 132, 67, 119, 92]

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

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