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 | 6 |
4 | 30 |
5 | 180 |
6 | 1440 |
7 | 12960 |
8 | 142560 |
9 | 1995840 |
10 | 29937600 |
11 | 538876800 |
12 | 10777536000 |
13 | 226328256000 |
14 | 5205549888000 |
15 | 135344297088000 |
16 | 3924984615552000 |
17 | 117749538466560000 |
18 | 3885734769396480000 |
19 | 136000716928876800000 |
20 | 4896025809439564800000 |
21 | 190945006568143027200000 |