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 | 0 |
1 | 20 |
2 | 1960 |
3 | 192060 |
4 | 18819920 |
5 | 1844160100 |
6 | 180708869880 |
7 | 17707625088140 |
8 | 1735166549767840 |
9 | 170028614252160180 |
10 | 16661069030161929800 |
11 | 1632614736341616960220 |
12 | 159979583092448300171760 |