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 | 1 |
2 | 1 |
3 | 5 |
4 | 50 |
5 | 1713 |
6 | 1101990 |
7 | 68715891672 |
8 | 1180735735356264714926 |
9 | 170141183460507906731293351306487161569 |
10 | 7237005577335553223087828975127304177495735363998991435497132228228565768846 |