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) |
---|---|
1 | -30 |
2 | 6660 |
3 | -1536120 |
4 | 354476040 |
5 | -81800478900 |
6 | 18876653594640 |
7 | -4356063194112240 |
8 | 1005225129672310800 |
9 | -231970363216834560390 |
10 | 53530545369975222475800 |
11 | -12352954264801690636800360 |
12 | 2850624405442199478575792160 |