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.

A062550 a(n) = Sum_{k = 1..2n} floor(2n/k).

Table of values

n a(n)
0 0
1 3
2 8
3 14
4 20
5 27
6 35
7 41
8 50
9 58
10 66
11 74
12 84
13 91
14 101
15 111
16 119
17 127
18 140
19 146
20 158
21 168
22 176
23 186
24 198
25 207
26 217
27 227
28 239
29 247
30 261
31 267
32 280
33 292
34 300
35 312
36 326
37 332
38 344
39 356
40 368
41 377
42 391
43 399
44 411
45 425
46 435
47 443
48 459
49 467
50 482
51 492
52 502
53 514
54 528

List of values

[0, 3, 8, 14, 20, 27, 35, 41, 50, 58, 66, 74, 84, 91, 101, 111, 119, 127, 140, 146, 158, 168, 176, 186, 198, 207, 217, 227, 239, 247, 261, 267, 280, 292, 300, 312, 326, 332, 344, 356, 368, 377, 391, 399, 411, 425, 435, 443, 459, 467, 482, 492, 502, 514, 528]