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 | 2 |
2 | -7 |
3 | -32 |
4 | 240 |
5 | 2528 |
6 | -34112 |
7 | -563712 |
8 | 10987520 |
9 | 247459840 |
10 | -7297638400 |
11 | -222713856000 |
12 | 8349585408000 |
13 | 338297978880000 |
14 | -14712528568320000 |
15 | -684369944248320000 |
16 | 36606670004551680000 |
17 | 2142049437446307840000 |
18 | -131713035645097082880000 |