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 | 3 |
2 | 12 |
3 | 45 |
4 | 132 |
5 | 135 |
6 | -702 |
7 | 6573 |
8 | 111576 |
9 | -634581 |
10 | -19482690 |
11 | 104641713 |
12 | 5438689380 |
13 | -21226768017 |
14 | -2173847986086 |
15 | 3249084663765 |
16 | 1168505502268848 |
17 | 2167390942251219 |
18 | -807540016560944778 |
19 | -5035872168333504807 |
20 | 693302551375611396540 |
21 | 8209523136574257223383 |