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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.

A024924 a(n) = Sum_{k=1..n} prime(k)*floor(n/prime(k)).

Table of values

n a(n)
0 0
1 0
2 2
3 5
4 7
5 12
6 17
7 24
8 26
9 29
10 36
11 47
12 52
13 65
14 74
15 82
16 84
17 101
18 106
19 125
20 132
21 142
22 155
23 178
24 183
25 188
26 203
27 206
28 215
29 244
30 254
31 285
32 287
33 301
34 320
35 332
36 337
37 374
38 395
39 411
40 418
41 459
42 471
43 514
44 527
45 535
46 560
47 607
48 612
49 619
50 626
51 646
52 661
53 714
54 719
55 735
56 744
57 766
58 797
59 856

List of values

[0, 0, 2, 5, 7, 12, 17, 24, 26, 29, 36, 47, 52, 65, 74, 82, 84, 101, 106, 125, 132, 142, 155, 178, 183, 188, 203, 206, 215, 244, 254, 285, 287, 301, 320, 332, 337, 374, 395, 411, 418, 459, 471, 514, 527, 535, 560, 607, 612, 619, 626, 646, 661, 714, 719, 735, 744, 766, 797, 856]

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

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