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.

A146994 a(n) = (n+1)^2/4 + (floor((n+5)/6) - 1/4) * ((n+1) mod 2).

Table of values

n a(n)
1 1
2 3
3 4
4 7
5 9
6 13
7 16
8 22
9 25
10 32
11 36
12 44
13 49
14 59
15 64
16 75
17 81
18 93
19 100
20 114
21 121
22 136
23 144
24 160
25 169
26 187
27 196
28 215
29 225
30 245
31 256
32 278
33 289
34 312
35 324
36 348
37 361
38 387
39 400
40 427
41 441
42 469
43 484
44 514
45 529
46 560
47 576
48 608
49 625
50 659
51 676
52 711
53 729
54 765
55 784
56 822
57 841

List of values

[1, 3, 4, 7, 9, 13, 16, 22, 25, 32, 36, 44, 49, 59, 64, 75, 81, 93, 100, 114, 121, 136, 144, 160, 169, 187, 196, 215, 225, 245, 256, 278, 289, 312, 324, 348, 361, 387, 400, 427, 441, 469, 484, 514, 529, 560, 576, 608, 625, 659, 676, 711, 729, 765, 784, 822, 841]