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 | 13 |
4 | -127 |
5 | 2101 |
6 | -41801 |
7 | 1030177 |
8 | -29820127 |
9 | 995977801 |
10 | -37660751569 |
11 | 1590847310581 |
12 | -74242656468575 |
13 | 3793664894534269 |
14 | -210656932372422745 |
15 | 12630986901470435401 |
16 | -813335155262348743231 |
17 | 55977540398642247218449 |