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 | 35280 |
8 | 866880 |
9 | 13849920 |
10 | 158004000 |
11 | 1347524640 |
12 | 8866186560 |
13 | 46496324160 |
14 | 201705744240 |
15 | 748737990000 |
16 | 2444976293760 |
17 | 7178449299840 |
18 | 19276199691840 |
19 | 47983899216960 |
20 | 111920569776000 |
21 | 246727594270080 |
22 | 517702915311120 |
23 | 1039979954779920 |