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 | -1 |
3 | -5 |
4 | 15 |
5 | 56 |
6 | -455 |
7 | -237 |
8 | 16947 |
9 | -64220 |
10 | -529494 |
11 | 6833608 |
12 | -8606015 |
13 | -459331677 |
14 | 4335744673 |
15 | 6800310151 |
16 | -518075832085 |
17 | 4315086396640 |
18 | 19931595013738 |
19 | -812870258798156 |
20 | 6648395876520816 |
21 | 46852711038750520 |
22 | -1752440325584024944 |
23 | 15485712825845269456 |