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 | 10 |
3 | 1540 |
4 | 2309384 |
5 | 20856798285 |
6 | 842286559093240 |
7 | 123538613356253145400 |
8 | 56272722406349235035916800 |
9 | 70417932475495769964322670258947 |
10 | 219302242655748448462474951981229489200 |