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.

A011865 a(n) = floor( n*(n - 1)/12 ).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 1
6 2
7 3
8 4
9 6
10 7
11 9
12 11
13 13
14 15
15 17
16 20
17 22
18 25
19 28
20 31
21 35
22 38
23 42
24 46
25 50
26 54
27 58
28 63
29 67
30 72
31 77
32 82
33 88
34 93
35 99
36 105
37 111
38 117
39 123
40 130
41 136
42 143
43 150
44 157
45 165
46 172
47 180
48 188
49 196
50 204
51 212
52 221
53 229
54 238
55 247
56 256
57 266
58 275
59 285
60 295
61 305
62 315
63 325
64 336

List of values

[0, 0, 0, 0, 1, 1, 2, 3, 4, 6, 7, 9, 11, 13, 15, 17, 20, 22, 25, 28, 31, 35, 38, 42, 46, 50, 54, 58, 63, 67, 72, 77, 82, 88, 93, 99, 105, 111, 117, 123, 130, 136, 143, 150, 157, 165, 172, 180, 188, 196, 204, 212, 221, 229, 238, 247, 256, 266, 275, 285, 295, 305, 315, 325, 336]

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

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