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.

A011864 a(n) = floor(n*(n - 1)/11).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 1
6 2
7 3
8 5
9 6
10 8
11 10
12 12
13 14
14 16
15 19
16 21
17 24
18 27
19 31
20 34
21 38
22 42
23 46
24 50
25 54
26 59
27 63
28 68
29 73
30 79
31 84
32 90
33 96
34 102
35 108
36 114
37 121
38 127
39 134
40 141
41 149
42 156
43 164
44 172
45 180
46 188
47 196
48 205
49 213
50 222
51 231
52 241
53 250
54 260
55 270
56 280
57 290
58 300
59 311
60 321
61 332
62 343
63 355

List of values

[0, 0, 0, 0, 1, 1, 2, 3, 5, 6, 8, 10, 12, 14, 16, 19, 21, 24, 27, 31, 34, 38, 42, 46, 50, 54, 59, 63, 68, 73, 79, 84, 90, 96, 102, 108, 114, 121, 127, 134, 141, 149, 156, 164, 172, 180, 188, 196, 205, 213, 222, 231, 241, 250, 260, 270, 280, 290, 300, 311, 321, 332, 343, 355]