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 | 18 |
2 | 180 |
3 | 1512 |
4 | 11664 |
5 | 85536 |
6 | 606528 |
7 | 4199040 |
8 | 28553472 |
9 | 191476224 |
10 | 1269789696 |
11 | 8344332288 |
12 | 54419558400 |
13 | 352638738432 |
14 | 2272560758784 |
15 | 14575734521856 |
16 | 93096626946048 |
17 | 592433080565760 |
18 | 3757718396731392 |
19 | 23765029860409344 |
20 | 149902496042582016 |
21 | 943288877536247808 |