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 | 0 |
2 | 0 |
3 | 6 |
4 | 24 |
5 | 60 |
6 | 3000 |
7 | 45570 |
8 | 403536 |
9 | 10644984 |
10 | 297562320 |
11 | 5517833310 |
12 | 142801022760 |
13 | 5076208052916 |
14 | 150282366476424 |
15 | 4713707747551530 |
16 | 189345734667052320 |
17 | 7517503455423740400 |
18 | 295622259241028433696 |
19 | 13370535071068474177974 |
20 | 642403497550155241197240 |