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 | 108 |
| 2 | 1728 |
| 3 | 8748 |
| 4 | 12348 |
| 5 | 27648 |
| 6 | 67500 |
| 7 | 139968 |
| 8 | 197568 |
| 9 | 259308 |
| 10 | 442368 |
| 11 | 707472 |
| 12 | 708588 |
| 13 | 1000188 |
| 14 | 1080000 |
| 15 | 1581228 |
| 16 | 2239488 |
| 17 | 3084588 |
| 18 | 3161088 |
| 19 | 4148928 |
| 20 | 5467500 |
| 21 | 7077888 |
| 22 | 7717500 |
| 23 | 9020268 |
| 24 | 11319552 |
| 25 | 11337408 |
| 26 | 14074668 |
| 27 | 16003008 |
| 28 | 17280000 |
| 29 | 21003948 |
| 30 | 25299648 |