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 | 2 |
3 | 8 |
4 | 56 |
5 | 536 |
6 | 6336 |
7 | 89984 |
8 | 1502080 |
9 | 28816000 |
10 | 624183040 |
11 | 15068741632 |
12 | 401279717376 |
13 | 11686228873216 |
14 | 369481496674304 |
15 | 12604143513731072 |
16 | 461450753988067328 |
17 | 18047560103055097856 |
18 | 750979001470906073088 |
19 | 33127742823550018125824 |
20 | 1544257684260700601712640 |