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 | -1 |
3 | 5 |
4 | -53 |
5 | 127 |
6 | -677 |
7 | 2221 |
8 | -61133 |
9 | 205563 |
10 | -1394207 |
11 | 4852339 |
12 | -68586849 |
13 | 243751723 |
14 | -1741612525 |
15 | 6265913725 |
16 | -363239625661 |
17 | 1323861506899 |
18 | -9699189175227 |
19 | 35700526467479 |
20 | -527987675255931 |
21 | 1960112858076289 |
22 | -14606721595781139 |
23 | 54604708004873403 |