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 | 8 |
3 | 54 |
4 | 498 |
5 | 5868 |
6 | 83940 |
7 | 1413480 |
8 | 27375240 |
9 | 599437440 |
10 | 14641665120 |
11 | 394657325280 |
12 | 11635613604000 |
13 | 372469741813440 |
14 | 12864889063033920 |
15 | 476870475257550720 |
16 | 18882021780125953920 |
17 | 795381867831610978560 |
18 | 35515223076159203880960 |