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 | 3 |
3 | 21 |
4 | 459 |
5 | 48069 |
6 | 31721355 |
7 | 151932395493 |
8 | 5929991210130219 |
9 | 2103657835595933507013 |
10 | 7506346835525189003011779147 |
11 | 295743497615320848280307669164734117 |
12 | 140189609286888251994538844205855399795958635 |