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.

A008130 a(n) = floor(n/3)*ceiling(n/3).

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 2
5 2
6 4
7 6
8 6
9 9
10 12
11 12
12 16
13 20
14 20
15 25
16 30
17 30
18 36
19 42
20 42
21 49
22 56
23 56
24 64
25 72
26 72
27 81
28 90
29 90
30 100
31 110
32 110
33 121
34 132
35 132
36 144
37 156
38 156
39 169
40 182
41 182
42 196
43 210
44 210
45 225
46 240
47 240
48 256
49 272
50 272
51 289
52 306
53 306
54 324
55 342
56 342
57 361
58 380
59 380
60 400

List of values

[0, 0, 0, 1, 2, 2, 4, 6, 6, 9, 12, 12, 16, 20, 20, 25, 30, 30, 36, 42, 42, 49, 56, 56, 64, 72, 72, 81, 90, 90, 100, 110, 110, 121, 132, 132, 144, 156, 156, 169, 182, 182, 196, 210, 210, 225, 240, 240, 256, 272, 272, 289, 306, 306, 324, 342, 342, 361, 380, 380, 400]