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 | 12 |
3 | 485 |
4 | 65280 |
5 | 33551307 |
6 | 68719430080 |
7 | 562949952597769 |
8 | 18446744073692774400 |
9 | 2417851639229257961991863 |
10 | 1267650600228229401486703205376 |
11 | 2658455991569831745807613835249018541 |
12 | 22300745198530623141535718272639445405532160 |