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 | 5 |
3 | -29 |
4 | 270 |
5 | -3233 |
6 | 47800 |
7 | -838561 |
8 | 17013991 |
9 | -391779640 |
10 | 10091836632 |
11 | -287491284748 |
12 | 8973657413421 |
13 | -304549220113387 |
14 | 11165193890312790 |
15 | -439726629957500944 |
16 | 18514829984975265703 |
17 | -829953080825411342745 |
18 | 39461813340364709540008 |