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 | 214841575522005575270400 |
2 | 14515406695082926420056516790429286400 |
3 | 85528710781342640103833619055142765466746880000 |
4 | 3175144122737732284276405334472656250000000000000000000 |