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 | 5 |
4 | 24 |
5 | 129 |
6 | 960 |
7 | 7965 |
8 | 80640 |
9 | 903105 |
10 | 11612160 |
11 | 163451925 |
12 | 2554675200 |
13 | 43259364225 |
14 | 797058662400 |
15 | 15764670046125 |
16 | 334764638208000 |
17 | 7571150452490625 |
18 | 182111963185152000 |
19 | 4634731528895593125 |
20 | 124564582818643968000 |