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 | 1 |
1 | 2 |
2 | 4 |
3 | 16 |
4 | 70 |
5 | 336 |
6 | 1720 |
7 | 9152 |
8 | 50140 |
9 | 280882 |
10 | 1601496 |
11 | 9263424 |
12 | 54224312 |
13 | 320611152 |
14 | 1912003536 |
15 | 11487287872 |
16 | 69463274022 |
17 | 422440713680 |
18 | 2582081184572 |
19 | 15853795192704 |
20 | 97736576247976 |
21 | 604744065493936 |
22 | 3754311394271208 |
23 | 23377930236777152 |