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.

A366969 a(n) = Sum_{k=3..n} (k-2) * floor(n/k).

Table of values

n a(n)
1 0
2 0
3 1
4 3
5 6
6 11
7 16
8 24
9 32
10 43
11 52
12 69
13 80
14 97
15 114
16 136
17 151
18 179
19 196
20 227
21 252
22 281
23 302
24 347
25 373
26 408
27 441
28 486
29 513
30 570
31 599
32 651
33 692
34 739
35 780
36 854
37 889
38 942
39 991
40 1066
41 1105
42 1186
43 1227
44 1300
45 1367
46 1432
47 1477
48 1582
49 1634
50 1716
51 1781
52 1868
53 1919
54 2024

List of values

[0, 0, 1, 3, 6, 11, 16, 24, 32, 43, 52, 69, 80, 97, 114, 136, 151, 179, 196, 227, 252, 281, 302, 347, 373, 408, 441, 486, 513, 570, 599, 651, 692, 739, 780, 854, 889, 942, 991, 1066, 1105, 1186, 1227, 1300, 1367, 1432, 1477, 1582, 1634, 1716, 1781, 1868, 1919, 2024]