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.

A247034 Smallest integer x such that the number of integers y satisfying sigma(y)/y > sigma(x)/x is exactly n.

Table of values

n a(n)
0 1
1 3
2 10
3 5
4 9
5 7
6 15
7 32
8 132
9 11
10 21
11 13
12 44
13 70
14 52
15 17
16 25
17 19
18 38
19 33
20 198
21 23
22 35
23 46
24 39
25 76
26 234
27 29
28 220
29 31
30 224
31 62
32 51
33 136
34 260
35 37
36 57
37 55
38 74
39 41
40 1170
41 43
42 196
43 82
44 69
45 47
46 10440
47 154
48 222
49 94
50 520
51 53
52 744
53 148
54 77
55 190
56 87
57 59
58 182
59 61
60 93

List of values

[1, 3, 10, 5, 9, 7, 15, 32, 132, 11, 21, 13, 44, 70, 52, 17, 25, 19, 38, 33, 198, 23, 35, 46, 39, 76, 234, 29, 220, 31, 224, 62, 51, 136, 260, 37, 57, 55, 74, 41, 1170, 43, 196, 82, 69, 47, 10440, 154, 222, 94, 520, 53, 744, 148, 77, 190, 87, 59, 182, 61, 93]