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 | 2 |
2 | 72 |
3 | 995328 |
4 | 206391214080000 |
5 | 39934999921327865856000000000 |
6 | 654541076770994951831125144608178176000000000000000 |
7 | 113391518341540395635327816456127297986876881699306137641287680000000000000000000000 |