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 | 1 |
2 | 120 |
3 | 524268 |
4 | 140737488355280 |
5 | 2596148429267413814265248164609936 |
6 | 57896044618658097711785492504343953926634992332820282019728792003956564819712 |