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 | 0 |
3 | -9 |
4 | -32 |
5 | 225 |
6 | 3456 |
7 | 2695 |
8 | -433152 |
9 | -4495743 |
10 | 47872000 |
11 | 1768142871 |
12 | 6703534080 |
13 | -597265448351 |
14 | -11959736205312 |
15 | 126058380654375 |
16 | 9454322092343296 |
17 | 84694164336894465 |
18 | -5776865438988238848 |
19 | -192541299662555831753 |
20 | 1511905067561779200000 |
21 | 243338391925401706938081 |
22 | 3972949090873574466519040 |