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 | -2 |
3 | -16 |
4 | -132 |
5 | -1216 |
6 | -12440 |
7 | -138048 |
8 | -1601264 |
9 | -18108928 |
10 | -161934624 |
11 | 404007680 |
12 | 92590134208 |
13 | 4221314202624 |
14 | 159324751301248 |
15 | 5730872535686144 |
16 | 205239818509082880 |
17 | 7450322829180649472 |
18 | 276342876017093172736 |
19 | 10509280308463090102272 |