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) |
---|---|
2 | 1 |
3 | 840 |
4 | 619200 |
5 | 447552000 |
6 | 322444800000 |
7 | 232185139200000 |
8 | 167176286208000000 |
9 | 120367284387840000000 |
10 | 86664487757414400000000 |
11 | 62398436345118720000000000 |
12 | 44926874787659120640000000000 |