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 | 6 |
2 | 66 |
3 | 1540 |
4 | 66045 |
5 | 4582116 |
6 | 470155077 |
7 | 66983637864 |
8 | 12655529067060 |
9 | 3062465626261470 |
10 | 923729223066105456 |
11 | 339813167168828020668 |
12 | 149762733221010818774320 |
13 | 77904783726874238769542600 |