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 | -2 |
2 | -6 |
3 | -40 |
4 | -386 |
5 | -4952 |
6 | -77116 |
7 | -1406164 |
8 | -29389570 |
9 | -692122610 |
10 | -18136684128 |
11 | -523599632000 |
12 | -16516245738140 |
13 | -565284631133600 |
14 | -20867650682241704 |
15 | -826570263691236456 |
16 | -34971594470460748146 |
17 | -1574134630989710480092 |