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.

A085961 Sigma of the least numbers k for which sigma is divisible by k (where sigma is the sum of the divisors of k, A000203(k)).

Table of values

n a(n)
1 1
2 4
3 3
4 4
5 15
6 6
7 7
8 8
9 18
10 20
11 44
12 12
13 13
14 28
15 15
16 32
17 68
18 18
19 38
20 20
21 42
22 44
23 138
24 24
25 150
26 78
27 54
28 28
29 174
30 60
31 31
32 32
33 132
34 68
35 140
36 36
37 74
38 38
39 39
40 40
41 164
42 42
43 258
44 44
45 90
46 138
47 282
48 48
49 98
50 150
51 102
52 104
53 212
54 54
55 110
56 56
57 57
58 174
59 354
60 60
61 183
62 124
63 63
64 128
65 195

List of values

[1, 4, 3, 4, 15, 6, 7, 8, 18, 20, 44, 12, 13, 28, 15, 32, 68, 18, 38, 20, 42, 44, 138, 24, 150, 78, 54, 28, 174, 60, 31, 32, 132, 68, 140, 36, 74, 38, 39, 40, 164, 42, 258, 44, 90, 138, 282, 48, 98, 150, 102, 104, 212, 54, 110, 56, 57, 174, 354, 60, 183, 124, 63, 128, 195]

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

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