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 | 1 |
2 | 2 |
3 | 9 |
4 | 40 |
5 | 355 |
6 | 11490 |
7 | 7758205 |
8 | 549758283980 |
9 | 10626621620680257450759 |
10 | 1701411834605079120446041612344662275078 |
11 | 79607061350691085453966118726400345961810854094316840855510985234351715774913 |