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 | 18 |
4 | 1728 |
5 | 4320000 |
6 | 699840000000 |
7 | 18525482136000000000 |
8 | 204051433560311070720000000000 |
9 | 2399547398533110254947300351672320000000000 |
10 | 77759951835586717141477466390085274435584000000000000000000 |
11 | 18011357710498321908881994832212360081640749122627567616000000000000000000000000 |