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 | 2 |
2 | 6 |
3 | 30 |
4 | 210 |
5 | 2310 |
6 | 29464 |
7 | 476928 |
8 | 9671392 |
9 | 222388792 |
10 | 6438663000 |
11 | 200560490130 |
12 | 7379606916000 |
13 | 299261862900000 |
14 | 13004421443456272 |
15 | 614231422273479360 |
16 | 31727029501157817600 |
17 | 1915248189055217892480 |
18 | 116762424492324428512272 |