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) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 1 |
6 | 13 |
7 | 126 |
8 | 288 |
9 | 8160 |
10 | 110800 |
11 | 8552205 |
12 | 253822863 |
13 | 21802799690 |
14 | 1751958608840 |
15 | 231900341949104 |
16 | 8821242453833942 |
17 | 1943505339202134370 |
18 | 417503287597170065730 |
19 | 18004075657522393347770 |
20 | 7276527497090264178405240 |
21 | 2096206309349359523650043220 |