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 | 3 |
2 | -4 |
3 | 12 |
4 | 144 |
5 | 576 |
6 | -7104 |
7 | 45248 |
8 | 450432 |
9 | 2240512 |
10 | 5292544 |
11 | -88076288 |
12 | -62210048 |
13 | 391122944 |
14 | -1489174528 |
15 | -165174853632 |
16 | 2565388042240 |
17 | -28667557511168 |
18 | -1065163492556800 |
19 | -14206520416796672 |
20 | -115544734381899776 |
21 | 5968167755906547712 |
22 | -258278630548029046784 |