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 | 4 |
3 | 6 |
4 | 136 |
5 | 900 |
6 | 16308 |
7 | 229320 |
8 | 4691104 |
9 | 99156960 |
10 | 2481162480 |
11 | 67862678400 |
12 | 2063842827264 |
13 | 68473763804160 |
14 | 2468786906210688 |
15 | 96048626176339200 |
16 | 4010912604492410880 |
17 | 178968539487145282560 |
18 | 8496991445958129576960 |
19 | 427734144995749047152640 |