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 | 1 |
2 | -504 |
3 | 180252 |
4 | -56364992 |
5 | 16415391870 |
6 | -4574618335008 |
7 | 1237162549543256 |
8 | -327377686829760000 |
9 | 85212608926827807477 |
10 | -21894492009015306942480 |
11 | 5567179862617316105012532 |
12 | -1403483985988949037403977984 |