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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.

A284167 a(n) = Sum_{i=1..A000005(n)} d(n+k(i)), where d(t) is the number of divisors of t and k(i) is the i-th divisor of n.

Table of values

n a(n)
1 2
2 5
3 7
4 10
5 8
6 15
7 8
8 18
9 16
10 18
11 10
12 29
13 8
14 19
15 25
16 28
17 10
18 33
19 10
20 35
21 26
22 20
23 12
24 50
25 18
26 20
27 31
28 36
29 12
30 51
31 10
32 42
33 27
34 23
35 33
36 62
37 8
38 22
39 30
40 60
41 12
42 53
43 10
44 40
45 52
46 22
47 14
48 78
49 20
50 41
51 28
52 38
53 12
54 63
55 36
56 63
57 30
58 24
59 16
60 95
61 8
62 23
63 59
64 60
65 32
66 54
67 10

List of values

[2, 5, 7, 10, 8, 15, 8, 18, 16, 18, 10, 29, 8, 19, 25, 28, 10, 33, 10, 35, 26, 20, 12, 50, 18, 20, 31, 36, 12, 51, 10, 42, 27, 23, 33, 62, 8, 22, 30, 60, 12, 53, 10, 40, 52, 22, 14, 78, 20, 41, 28, 38, 12, 63, 36, 63, 30, 24, 16, 95, 8, 23, 59, 60, 32, 54, 10]

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

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