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 | 4 |
2 | 30 |
3 | 256 |
4 | 2310 |
5 | 21504 |
6 | 204204 |
7 | 1966080 |
8 | 19122246 |
9 | 187432960 |
10 | 1848483780 |
11 | 18320719872 |
12 | 182327718300 |
13 | 1820797698048 |
14 | 18236779032600 |
15 | 183120225632256 |
16 | 1842826521244230 |
17 | 18581317012684800 |
18 | 187679234340049620 |
19 | 1898554215471513600 |
20 | 19232182592635611060 |