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 | 1 |
2 | 2 |
3 | 12 |
4 | 120 |
5 | 1380 |
6 | 19440 |
7 | 341040 |
8 | 7029120 |
9 | 164762640 |
10 | 4355769600 |
11 | 128527439040 |
12 | 4181332700160 |
13 | 148633442717760 |
14 | 5734427199621120 |
15 | 238676208285715200 |
16 | 10659325532663808000 |
17 | 508452777299622355200 |
18 | 25800664274991135129600 |