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 | 1 |
2 | 5 |
3 | 48 |
4 | 693 |
5 | 13440 |
6 | 328185 |
7 | 9676800 |
8 | 334639305 |
9 | 13284311040 |
10 | 595505854125 |
11 | 29756856729600 |
12 | 1640160546688125 |
13 | 98860780014796800 |
14 | 6469121228247302625 |
15 | 456736803668361216000 |
16 | 34607895888408878660625 |
17 | 2801319062499282124800000 |
18 | 241247999301688986945463125 |