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 | 18 |
3 | 2700 |
4 | 992250 |
5 | 250047000 |
6 | 68075295750 |
7 | 253103949598500 |
8 | 24677635085853750 |
9 | 40753351656067050000 |
10 | 1969563638017107451068750 |
11 | 2619519638562752909921437500 |
12 | 2910024366479362207631724918750 |