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 | 1 |
2 | 2 |
3 | 8 |
4 | 72 |
5 | 1440 |
6 | 55008 |
7 | 3507840 |
8 | 342679680 |
9 | 48401625600 |
10 | 9472057781760 |
11 | 2484361405532160 |
12 | 850218223244544000 |
13 | 371335242657899520000 |
14 | 203148791342840318976000 |
15 | 137006974339300359770112000 |