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 | 3628800 |
2 | 6290830003852800 |
3 | 30306073546461323055916800 |
4 | 231242270452155338291905203314956800 |
5 | 2293197130058463838438742129627609575368940800 |
6 | 26941822036577030394903099245279465611395585827577676800 |