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.
n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 21 |
4 | 112 |
5 | 570 |
6 | 2772 |
7 | 13013 |
8 | 59488 |
9 | 266526 |
10 | 1175720 |
11 | 5123426 |
12 | 22108704 |
13 | 94645460 |
14 | 402503220 |
15 | 1702300725 |
16 | 7165821120 |
17 | 30043474230 |
18 | 125523450360 |
19 | 522857438070 |
20 | 2172127120800 |
21 | 9002522512620 |
22 | 37233403401480 |
23 | 153704429299746 |
24 | 633442159732032 |
25 | 2606543487445100 |
26 | 10710790748646352 |
27 | 43957192722175908 |