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.

A379495 a(n) = A019565(A001065(n)), where A019565 is the base-2 exp-function, and A001065 is the sum of proper divisors of n.

Table of values

n a(n)
1 1
2 2
3 2
4 6
5 2
6 15
7 2
8 30
9 5
10 7
11 2
12 11
13 2
14 21
15 14
16 210
17 2
18 110
19 2
20 165
21 42
22 105
23 2
24 65
25 15
26 11
27 70
28 385
29 2
30 273
31 2
32 2310
33 210
34 55
35 70
36 4290
37 2
38 165
39 22
40 429
41 2
42 2145
43 2
44 91
45 26
46 231
47 2
48 595
49 7
50 546
51 110
52 1365
53 2
54 51
55 22
56 17
57 330
58 13
59 2
60 7735
61 2
62 39
63 182
64 30030
65 66
66 1785
67 2
68 3003
69 462
70 357
71 2
72 102102
73 2
74 91
75 286
76 17
77 66

List of values

[1, 2, 2, 6, 2, 15, 2, 30, 5, 7, 2, 11, 2, 21, 14, 210, 2, 110, 2, 165, 42, 105, 2, 65, 15, 11, 70, 385, 2, 273, 2, 2310, 210, 55, 70, 4290, 2, 165, 22, 429, 2, 2145, 2, 91, 26, 231, 2, 595, 7, 546, 110, 1365, 2, 51, 22, 17, 330, 13, 2, 7735, 2, 39, 182, 30030, 66, 1785, 2, 3003, 462, 357, 2, 102102, 2, 91, 286, 17, 66]