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 | 1 |
3 | 2 |
4 | 3 |
5 | 10 |
6 | 56 |
7 | 1287 |
8 | 203490 |
9 | 927983760 |
10 | 841728816603675 |
11 | 4404006643598438948468376 |
12 | 26481463552095445860988385376871250071680 |
13 | 1057375592689477481644154770179770478007054345083466115864070012050 |