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 | 126 |
1 | 252 |
2 | 672 |
3 | 2232 |
4 | 8592 |
5 | 36552 |
6 | 166992 |
7 | 804552 |
8 | 4037712 |
9 | 20923272 |
10 | 111231312 |
11 | 603667272 |
12 | 3331889232 |
13 | 18646768392 |
14 | 105558814032 |
15 | 603280840392 |
16 | 3475274371152 |
17 | 20152803339912 |
18 | 117513698083152 |
19 | 688425727971912 |
20 | 4048693055291472 |
21 | 23888489018765832 |
22 | 141334996634766672 |
23 | 838119509472869832 |