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 | 0 |
| 2 | 0 |
| 3 | 576 |
| 4 | 203650128 |
| 5 | 1040638993440 |
| 6 | 623084813563680 |
| 7 | 101592631680840720 |
| 8 | 6943164801523811616 |
| 9 | 255263918698905355008 |
| 10 | 5904362798572834500480 |
| 11 | 95380230960557432984160 |
| 12 | 1157524686225195065529840 |
| 13 | 11126698756531124744948256 |
| 14 | 88134022363811246118729888 |