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 | 4 |
2 | 40 |
3 | 620 |
4 | 13020 |
5 | 345120 |
6 | 11049960 |
7 | 414711720 |
8 | 17851113720 |
9 | 866838536640 |
10 | 46873882199520 |
11 | 2793214943693280 |
12 | 181854240448514400 |
13 | 12842833148474299200 |
14 | 977822088984613771200 |
15 | 79842750450344086867200 |
16 | 6959878576257689846265600 |