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.

A337744 Numbers of the form Sum_{e in S} 2^(e-1) where S is a finite set of positive integers such that any element of S divides the sum of the elements of S.

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 7
6 8
7 16
8 32
9 39
10 42
11 64
12 128
13 175
14 256
15 291
16 292
17 512
18 537
19 1024
20 2048
21 2087
22 2090
23 2181
24 2184
25 2350
26 4096
27 8192
28 8267
29 16384
30 16437
31 16902
32 16912
33 32768
34 34983
35 34986
36 65536
37 131072
38 131342
39 131363
40 131364
41 133127
42 133130
43 133152
44 262144
45 524288

List of values

[0, 1, 2, 4, 7, 8, 16, 32, 39, 42, 64, 128, 175, 256, 291, 292, 512, 537, 1024, 2048, 2087, 2090, 2181, 2184, 2350, 4096, 8192, 8267, 16384, 16437, 16902, 16912, 32768, 34983, 34986, 65536, 131072, 131342, 131363, 131364, 133127, 133130, 133152, 262144, 524288]