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 | 136 |
4 | 12840 |
5 | 373780 |
6 | 99827160 |
7 | 5116799368 |
8 | 2751754706832 |
9 | 212339816996032 |
10 | 194478305002268064 |
11 | 20707051422399128416 |
12 | 29191372156840204219200 |
13 | 4055642578974004982217280 |
14 | 8220961603626446873042001408 |