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 | 3 |
2 | 12 |
3 | 240 |
4 | 344064 |
5 | 135239930216448 |
6 | 972994892914558418965586768125212229632 |
7 | 41146466050197558152623700055749184719621958256873764134791737821244302120007939929484006451701147677119500779520 |