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 | 28 |
2 | 247 |
3 | 4129 |
4 | 60252 |
5 | 1093496 |
6 | 21435360 |
7 | 415752625 |