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 | 3 |
2 | 51 |
3 | 4360 |
4 | 861420 |
5 | 302472576 |
6 | 165549605760 |
7 | 130241382036480 |
8 | 139296260790086400 |
9 | 194427690066299289600 |
10 | 343266609438110040883200 |
11 | 747889929370001008617062400 |
12 | 1971026055567996899374212710400 |
13 | 6180432763819774878006029844480000 |