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.

A193553 Sum of divisors of 4*n.

Table of values

n a(n)
1 7
2 15
3 28
4 31
5 42
6 60
7 56
8 63
9 91
10 90
11 84
12 124
13 98
14 120
15 168
16 127
17 126
18 195
19 140
20 186
21 224
22 180
23 168
24 252
25 217
26 210
27 280
28 248
29 210
30 360
31 224
32 255
33 336
34 270
35 336
36 403
37 266
38 300
39 392
40 378
41 294
42 480
43 308
44 372
45 546
46 360
47 336
48 508
49 399
50 465
51 504
52 434
53 378
54 600
55 504
56 504
57 560
58 450
59 420
60 744
61 434
62 480
63 728
64 511
65 588
66 720

List of values

[7, 15, 28, 31, 42, 60, 56, 63, 91, 90, 84, 124, 98, 120, 168, 127, 126, 195, 140, 186, 224, 180, 168, 252, 217, 210, 280, 248, 210, 360, 224, 255, 336, 270, 336, 403, 266, 300, 392, 378, 294, 480, 308, 372, 546, 360, 336, 508, 399, 465, 504, 434, 378, 600, 504, 504, 560, 450, 420, 744, 434, 480, 728, 511, 588, 720]

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

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