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 | 4 |
3 | 6 |
4 | 4 |
5 | 0 |
6 | -2 |
7 | 14 |
8 | -100 |
9 | 792 |
10 | -6996 |
11 | 68508 |
12 | -737882 |
13 | 8676200 |
14 | -110627142 |
15 | 1520662410 |
16 | -22418697948 |
17 | 352885526856 |
18 | -5907074659016 |
19 | 104782694989616 |
20 | -1963418893492364 |
21 | 38753471698684512 |
22 | -803656781974363412 |
23 | 17469671114170029708 |
24 | -397223288562294817330 |
25 | 9429329994809282773300 |