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.

A008133 a(n) = floor(n/3)*floor((n+1)/3).

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 1
5 2
6 4
7 4
8 6
9 9
10 9
11 12
12 16
13 16
14 20
15 25
16 25
17 30
18 36
19 36
20 42
21 49
22 49
23 56
24 64
25 64
26 72
27 81
28 81
29 90
30 100
31 100
32 110
33 121
34 121
35 132
36 144
37 144
38 156
39 169
40 169
41 182
42 196
43 196
44 210
45 225
46 225
47 240
48 256
49 256
50 272
51 289
52 289
53 306
54 324
55 324
56 342
57 361
58 361
59 380
60 400
61 400
62 420
63 441
64 441
65 462
66 484
67 484
68 506

List of values

[0, 0, 0, 1, 1, 2, 4, 4, 6, 9, 9, 12, 16, 16, 20, 25, 25, 30, 36, 36, 42, 49, 49, 56, 64, 64, 72, 81, 81, 90, 100, 100, 110, 121, 121, 132, 144, 144, 156, 169, 169, 182, 196, 196, 210, 225, 225, 240, 256, 256, 272, 289, 289, 306, 324, 324, 342, 361, 361, 380, 400, 400, 420, 441, 441, 462, 484, 484, 506]

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

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