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 | 0 |
2 | 2 |
3 | 3 |
4 | 104 |
5 | 630 |
6 | 19944 |
7 | 259560 |
8 | 8718464 |
9 | 185086944 |
10 | 6914815200 |
11 | 206059083120 |
12 | 8700740615808 |
13 | 332779651158240 |
14 | 15916427365716864 |
15 | 738672634596405600 |
16 | 39847940942657495040 |
17 | 2163098542598925281280 |
18 | 130682368989193123952640 |