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) |
---|---|
1 | 0 |
2 | 2 |
3 | 16108 |
4 | 730983420 |
5 | 102117302729744 |
6 | 36724170744914466520 |
7 | 29526013062983124375791088 |