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 | 6 |
3 | 72 |
4 | 1254 |
5 | 28794 |
6 | 819888 |
7 | 27869316 |
8 | 1101032100 |
9 | 49570797780 |
10 | 2505156062472 |
11 | 140417898936336 |
12 | 8644973807845368 |
13 | 579908437058338920 |
14 | 42098286646367326368 |
15 | 3288252917244250703664 |
16 | 274974019392668843164176 |
17 | 24510436934573885695407504 |
18 | 2319947117871178825560902112 |