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 | 5 |
2 | 60 |
3 | 1506 |
4 | 74260 |
5 | 6981540 |
6 | 1232720402 |
7 | 405643523920 |
8 | 247808504584204 |
9 | 280544568122925740 |
10 | 588171370513791301320 |