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 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 720 |
7 | 20160 |
8 | 332640 |
9 | 4233600 |
10 | 46070640 |
11 | 451725120 |
12 | 4115105280 |
13 | 35517081600 |
14 | 294293759760 |
15 | 2362955474880 |
16 | 18509835445920 |
17 | 142172988048000 |
18 | 1074905737084080 |
19 | 8023358912869440 |
20 | 59263889194762560 |
21 | 433988913576556800 |
22 | 3155502239364459600 |
23 | 22807773973299268800 |