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.

A380845 The sum of divisors of n that have the same binary weight as n.

Table of values

n a(n)
1 1
2 3
3 3
4 7
5 5
6 9
7 7
8 15
9 12
10 15
11 11
12 21
13 13
14 21
15 15
16 31
17 17
18 36
19 19
20 35
21 28
22 33
23 23
24 45
25 25
26 39
27 27
28 49
29 29
30 45
31 31
32 63
33 36
34 51
35 42
36 84
37 37
38 57
39 39
40 75
41 41
42 84
43 43
44 77
45 60
46 69
47 47
48 93
49 56
50 75
51 51
52 91
53 53
54 81
55 55
56 105
57 57
58 87
59 59
60 105
61 61
62 93
63 63
64 127
65 70
66 108

List of values

[1, 3, 3, 7, 5, 9, 7, 15, 12, 15, 11, 21, 13, 21, 15, 31, 17, 36, 19, 35, 28, 33, 23, 45, 25, 39, 27, 49, 29, 45, 31, 63, 36, 51, 42, 84, 37, 57, 39, 75, 41, 84, 43, 77, 60, 69, 47, 93, 56, 75, 51, 91, 53, 81, 55, 105, 57, 87, 59, 105, 61, 93, 63, 127, 70, 108]

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

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