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 | 60 |
3 | 16626 |
4 | 12640320 |
5 | 20421928750 |
6 | 60233972198400 |
7 | 293230314199497444 |
8 | 2192804991244707840000 |
9 | 23869875368184417393486678 |
10 | 362747302615636095725568000000 |
11 | 7442995512384107947406685870219196 |
12 | 200637069747857913587015560318156800000 |
13 | 6945549555749361962465324588957867814958924 |