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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.

A229337 Sum of products of elements of nonempty subsets of divisors of n.

Table of values

n a(n)
1 1
2 5
3 7
4 29
5 11
6 167
7 15
8 269
9 79
10 395
11 23
12 10919
13 27
14 719
15 767
16 4589
17 35
18 31919
19 39
20 41579
21 1407
22 1655
23 47
24 2456999
25 311
26 2267
27 2239
28 104399
29 59
30 5499647
31 63
32 151469
33 3263
34 3779
35 3455
36 76767599
37 75
38 4679
39 4479
40 15343019
41 83
42 19071359
43 87
44 372599
45 353279
46 6767

List of values

[1, 5, 7, 29, 11, 167, 15, 269, 79, 395, 23, 10919, 27, 719, 767, 4589, 35, 31919, 39, 41579, 1407, 1655, 47, 2456999, 311, 2267, 2239, 104399, 59, 5499647, 63, 151469, 3263, 3779, 3455, 76767599, 75, 4679, 4479, 15343019, 83, 19071359, 87, 372599, 353279, 6767]

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

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