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 | 0 |
1 | 2 |
2 | 108 |
3 | 19152 |
4 | 8840000 |
5 | 8908817400 |
6 | 17303456226672 |
7 | 59111538137501696 |
8 | 331331804053754904576 |
9 | 2885800103371503562500000 |
10 | 37384163240259410286768056000 |
11 | 694933775143924511454539020849152 |
12 | 17989643936954432911290280974476623872 |
13 | 632268529759009258574304284235050340614528 |