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 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 18 |
5 | 30 |
6 | 576 |
7 | 840 |
8 | 24480 |
9 | 93696 |
10 | 800640 |
11 | 7983360 |
12 | 65318400 |
13 | 2286926400 |
14 | 13680979200 |
15 | 797369149440 |
16 | 16753029012720 |
17 | 10176199188480 |
18 | 159943859712000 |
19 | 26453863460044800 |
20 | 470500040794291200 |
21 | 20720967220237197312 |
22 | 61690805562507264000 |