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 | 12 |
2 | 856800 |
3 | 139890541190400 |
4 | 50664770469826998541056000 |
5 | 40527253814267058837705250384270510080000 |
6 | 71554565901386985191123530075861409411081105273676595200000 |