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.

A152985 Sum of proper divisors minus the number of proper divisors of the square A000290(n).

Table of values

n a(n)
1 0
2 1
3 2
4 11
5 4
6 47
7 6
8 57
9 36
10 109
11 10
12 245
13 12
14 195
15 170
16 247
17 16
18 509
19 18
20 547
21 292
22 439
23 22
24 1055
25 152
26 597
27 358
28 969
29 28
30 1895
31 30
32 1013
33 632
34 985
35 534
36 2431
37 36
38 1215
39 850
40 2317
41 40
42 3397
43 42
44 2173
45 1712
46 1747
47 46
48 4313
49 396
50 2953
51 1382
52 2955
53 52
54 4715
55 1090
56 4083

List of values

[0, 1, 2, 11, 4, 47, 6, 57, 36, 109, 10, 245, 12, 195, 170, 247, 16, 509, 18, 547, 292, 439, 22, 1055, 152, 597, 358, 969, 28, 1895, 30, 1013, 632, 985, 534, 2431, 36, 1215, 850, 2317, 40, 3397, 42, 2173, 1712, 1747, 46, 4313, 396, 2953, 1382, 2955, 52, 4715, 1090, 4083]