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.

A206804 (1/2)*A206803.

Table of values

n a(n)
2 1
3 4
4 13
5 26
6 49
7 78
8 121
9 188
10 264
11 370
12 498
13 638
14 804
15 1012
16 1265
17 1534
18 1854
19 2210
20 2585
21 3020
22 3497
23 4040
24 4675
25 5358
26 6066
27 6826
28 7613
29 8456
30 9502
31 10608
32 11807
33 13038
34 14434
35 15864
36 17399
37 19042
38 20759
39 22590
40 24538
41 26526
42 28719

List of values

[1, 4, 13, 26, 49, 78, 121, 188, 264, 370, 498, 638, 804, 1012, 1265, 1534, 1854, 2210, 2585, 3020, 3497, 4040, 4675, 5358, 6066, 6826, 7613, 8456, 9502, 10608, 11807, 13038, 14434, 15864, 17399, 19042, 20759, 22590, 24538, 26526, 28719]