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 | 0 |
1 | 2 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 110 |
6 | 550 |
7 | 2922 |
8 | 16242 |
9 | 93520 |
10 | 553980 |
11 | 3359384 |
12 | 20777588 |
13 | 130696662 |
14 | 834244830 |
15 | 5393850898 |
16 | 35272830054 |
17 | 233016356788 |
18 | 1553427829684 |
19 | 10441803227652 |
20 | 70715551631992 |
21 | 482201548554776 |
22 | 3308810614160224 |
23 | 22836540660981088 |
24 | 158458108961055864 |
25 | 1104984826809182592 |