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) |
---|---|
8 | 5040 |
9 | 362880 |
10 | 18144000 |
11 | 804988800 |
12 | 34488115200 |
13 | 1482082842240 |
14 | 65120246231040 |
15 | 2955402450000000 |
16 | 139296260790086400 |
17 | 6837541748945107200 |
18 | 349978565353512775680 |
19 | 18685433917574232157440 |
20 | 1040347501174674201600000 |
21 | 60368458528123335777196800 |