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 | 2 |
2 | 10 |
3 | 60 |
4 | 400 |
5 | 2900 |
6 | 22700 |
7 | 191600 |
8 | 1746400 |
9 | 17230000 |
10 | 184348000 |
11 | 2140118000 |
12 | 26925784000 |
13 | 366118706000 |
14 | 5359236310000 |
15 | 84077608400000 |
16 | 1407341155720000 |
17 | 25027454132360000 |
18 | 471046698018440000 |
19 | 9351091483806800000 |
20 | 195213433887227200000 |
21 | 4274234604872786800000 |
22 | 97924306054031604400000 |