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.

A338749 a(0) = 1; for n > 0, a(n) = n * Sum_{d|n, d < n} a(d - 1) / d.

Table of values

n a(n)
0 1
1 0
2 2
3 3
4 4
5 5
6 10
7 7
8 14
9 15
10 18
11 11
12 39
13 13
14 34
15 37
16 42
17 17
18 73
19 19
20 81
21 65
22 58
23 23
24 121
25 45
26 104
27 87
28 115
29 29
30 212
31 31
32 158
33 109
34 118
35 113
36 240
37 37
38 184
39 182
40 235
41 41
42 366
43 43
44 279
45 283
46 162
47 47
48 399
49 119
50 407
51 211
52 337
53 53
54 478
55 189
56 453
57 314
58 288
59 59
60 639

List of values

[1, 0, 2, 3, 4, 5, 10, 7, 14, 15, 18, 11, 39, 13, 34, 37, 42, 17, 73, 19, 81, 65, 58, 23, 121, 45, 104, 87, 115, 29, 212, 31, 158, 109, 118, 113, 240, 37, 184, 182, 235, 41, 366, 43, 279, 283, 162, 47, 399, 119, 407, 211, 337, 53, 478, 189, 453, 314, 288, 59, 639]