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 | 4 |
2 | 144 |
3 | 576 |
4 | 518400 |
5 | 2073600 |
6 | 3657830400 |
7 | 696729600 |
8 | 13168189440000 |
9 | 52672757760000 |
10 | 45888506560512000 |
11 | 917770131210240000 |
12 | 6840049010896797696000000 |
13 | 1013340594206932992000000 |
14 | 984967057569138868224000000 |
15 | 562838318610936496128000000 |