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 | 1 |
2 | 2 |
3 | 6 |
4 | 12 |
5 | 780 |
6 | 27720 |
7 | 47785500 |
8 | 160430026680 |
9 | 19702100764977190560 |
10 | 1389717843080061549600 |
11 | 689103351818617666941410400 |
12 | 3910098498311750671529113672239956967773312909280 |