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.

A085899 a(n) = floor( 2*(1 + n + 2*n^2 + 4*n^3)/(1 + 2*n + n^2)).

Table of values

n a(n)
1 4
2 9
3 16
4 23
5 30
6 38
7 46
8 53
9 61
10 69
11 77
12 85
13 93
14 101
15 109
16 117
17 124
18 132
19 140
20 148
21 156
22 164
23 172
24 180
25 188
26 196
27 204
28 212
29 220
30 228
31 236
32 244
33 252
34 260
35 268
36 276
37 284
38 292
39 300
40 308
41 316
42 324
43 332
44 340
45 348
46 356
47 364
48 372
49 380
50 388

List of values

[4, 9, 16, 23, 30, 38, 46, 53, 61, 69, 77, 85, 93, 101, 109, 117, 124, 132, 140, 148, 156, 164, 172, 180, 188, 196, 204, 212, 220, 228, 236, 244, 252, 260, 268, 276, 284, 292, 300, 308, 316, 324, 332, 340, 348, 356, 364, 372, 380, 388]