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 | 4 |
| 2 | 72 |
| 3 | 108 |
| 4 | 432 |
| 5 | 1152 |
| 6 | 2592 |
| 7 | 3528 |
| 8 | 9000 |
| 9 | 18252 |
| 10 | 20808 |
| 11 | 21600 |
| 12 | 34848 |
| 13 | 49392 |
| 14 | 69192 |
| 15 | 83232 |
| 16 | 103968 |
| 17 | 139968 |
| 18 | 180000 |
| 19 | 197568 |
| 20 | 264600 |
| 21 | 345600 |
| 22 | 362952 |
| 23 | 438048 |
| 24 | 444528 |
| 25 | 472392 |
| 26 | 649800 |
| 27 | 734472 |
| 28 | 808992 |
| 29 | 995328 |
| 30 | 1143072 |
| 31 | 1190700 |
| 32 | 1254528 |
| 33 | 1529388 |
| 34 | 1685448 |
| 35 | 1960200 |
| 36 | 2056752 |