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) |
|---|---|
| 1 | 0 |
| 2 | 240 |
| 3 | 9504 |
| 4 | 51504 |
| 5 | 148224 |
| 6 | 320328 |
| 7 | 588924 |
| 8 | 975216 |
| 9 | 1500408 |
| 10 | 2185704 |
| 11 | 3052308 |
| 12 | 4121424 |
| 13 | 5414256 |
| 14 | 6952008 |
| 15 | 8755884 |
| 16 | 10847088 |
| 17 | 13246824 |
| 18 | 15976296 |
| 19 | 19056708 |
| 20 | 22509264 |
| 21 | 26355168 |
| 22 | 30615624 |
| 23 | 35311836 |
| 24 | 40465008 |
| 25 | 46096344 |
| 26 | 52227048 |
| 27 | 58878324 |