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) |
---|---|
6 | 6 |
7 | 630 |
8 | 30240 |
9 | 1058400 |
10 | 31752000 |
11 | 880165440 |
12 | 23471078400 |
13 | 616475059200 |
14 | 16182470304000 |
15 | 428535787680000 |
16 | 11519041972838400 |
17 | 315583670578176000 |
18 | 8836342776188928000 |
19 | 253325921601392640000 |
20 | 7444680145020518400000 |