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.

A281151 a(n) = floor(4*n*(n+1)/5).

Table of values

n a(n)
0 0
1 1
2 4
3 9
4 16
5 24
6 33
7 44
8 57
9 72
10 88
11 105
12 124
13 145
14 168
15 192
16 217
17 244
18 273
19 304
20 336
21 369
22 404
23 441
24 480
25 520
26 561
27 604
28 649
29 696
30 744
31 793
32 844
33 897
34 952
35 1008
36 1065
37 1124
38 1185
39 1248
40 1312
41 1377
42 1444
43 1513
44 1584
45 1656
46 1729
47 1804
48 1881
49 1960
50 2040
51 2121
52 2204
53 2289

List of values

[0, 1, 4, 9, 16, 24, 33, 44, 57, 72, 88, 105, 124, 145, 168, 192, 217, 244, 273, 304, 336, 369, 404, 441, 480, 520, 561, 604, 649, 696, 744, 793, 844, 897, 952, 1008, 1065, 1124, 1185, 1248, 1312, 1377, 1444, 1513, 1584, 1656, 1729, 1804, 1881, 1960, 2040, 2121, 2204, 2289]