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 | 4 |
2 | 72 |
3 | 58800 |
4 | 1757711340 |
5 | 54169994838960 |
6 | 950645196424756293060600 |
7 | 94630125612279498512066506747436400 |
8 | 14119054639791549212725337736060964803166626000 |