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) |
---|---|
2 | 0 |
3 | 0 |
4 | 192 |
5 | 3000 |
6 | 46440 |
7 | 823200 |
8 | 16776704 |
9 | 387419760 |
10 | 9999999000 |
11 | 285311669280 |
12 | 8916100446528 |
13 | 302875106590056 |
14 | 11112006825555272 |
15 | 437893890380856000 |
16 | 18446744073709547520 |
17 | 827240261886336759264 |
18 | 39346408075296537569592 |
19 | 1978419655660313589117120 |
20 | 104857599999999999999992000 |