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.

A166375 a(n) = sum (floor (j^2/n)) taken over 1 <= j <= n-1.

Table of values

n a(n)
2 0
3 1
4 3
5 4
6 7
7 11
8 16
9 20
10 24
11 31
12 39
13 44
14 53
15 63
16 74
17 80
18 92
19 103
20 117
21 128
22 141
23 157
24 174
25 186
26 200
27 219
28 237
29 252
30 273
31 293
32 316
33 332
34 352
35 377
36 403
37 420
38 445
39 473
40 500
41 520
42 548
43 575
44 607
45 634
46 663
47 695
48 730
49 756
50 786
51 819
52 853
53 884
54 921
55 959
56 998

List of values

[0, 1, 3, 4, 7, 11, 16, 20, 24, 31, 39, 44, 53, 63, 74, 80, 92, 103, 117, 128, 141, 157, 174, 186, 200, 219, 237, 252, 273, 293, 316, 332, 352, 377, 403, 420, 445, 473, 500, 520, 548, 575, 607, 634, 663, 695, 730, 756, 786, 819, 853, 884, 921, 959, 998]