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 | -3 |
3 | 20 |
4 | -245 |
5 | 4290 |
6 | -114422 |
7 | 4086800 |
8 | -203647509 |
9 | 12920587070 |
10 | -1053926397590 |
11 | 105178069321944 |
12 | -12765014959365682 |
13 | 1838898931467398164 |
14 | -311221726754896488780 |
15 | 61047560951879121055296 |
16 | -13747598006865584455353165 |
17 | 3521759025274977423306328182 |
18 | -1018406456608128511401443183654 |