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.

A058212 a(n) = 1 + floor(n*(n-3)/6).

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 1
5 2
6 4
7 5
8 7
9 10
10 12
11 15
12 19
13 22
14 26
15 31
16 35
17 40
18 46
19 51
20 57
21 64
22 70
23 77
24 85
25 92
26 100
27 109
28 117
29 126
30 136
31 145
32 155
33 166
34 176
35 187
36 199
37 210
38 222
39 235
40 247
41 260
42 274
43 287
44 301
45 316
46 330
47 345
48 361
49 376
50 392
51 409
52 425
53 442
54 460
55 477
56 495
57 514
58 532
59 551

List of values

[1, 0, 0, 1, 1, 2, 4, 5, 7, 10, 12, 15, 19, 22, 26, 31, 35, 40, 46, 51, 57, 64, 70, 77, 85, 92, 100, 109, 117, 126, 136, 145, 155, 166, 176, 187, 199, 210, 222, 235, 247, 260, 274, 287, 301, 316, 330, 345, 361, 376, 392, 409, 425, 442, 460, 477, 495, 514, 532, 551]