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.

A386851 a(n) = floor(5*n^2/6).

Table of values

n a(n)
1 0
2 3
3 7
4 13
5 20
6 30
7 40
8 53
9 67
10 83
11 100
12 120
13 140
14 163
15 187
16 213
17 240
18 270
19 300
20 333
21 367
22 403
23 440
24 480
25 520
26 563
27 607
28 653
29 700
30 750
31 800
32 853
33 907
34 963
35 1020
36 1080
37 1140
38 1203
39 1267
40 1333
41 1400
42 1470
43 1540
44 1613
45 1687
46 1763
47 1840
48 1920
49 2000
50 2083
51 2167
52 2253

List of values

[0, 3, 7, 13, 20, 30, 40, 53, 67, 83, 100, 120, 140, 163, 187, 213, 240, 270, 300, 333, 367, 403, 440, 480, 520, 563, 607, 653, 700, 750, 800, 853, 907, 963, 1020, 1080, 1140, 1203, 1267, 1333, 1400, 1470, 1540, 1613, 1687, 1763, 1840, 1920, 2000, 2083, 2167, 2253]