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 | 729 |
| 2 | 2187 |
| 3 | 29791 |
| 4 | 50625 |
| 5 | 50653 |
| 6 | 83521 |
| 7 | 130321 |
| 8 | 132651 |
| 9 | 166375 |
| 10 | 185193 |
| 11 | 226981 |
| 12 | 300763 |
| 13 | 707281 |
| 14 | 804357 |
| 15 | 823543 |
| 16 | 1295029 |
| 17 | 1860867 |
| 18 | 1874161 |
| 19 | 2685619 |
| 20 | 3176523 |
| 21 | 4782969 |
| 22 | 5545233 |
| 23 | 5764801 |
| 24 | 7189057 |
| 25 | 9393931 |
| 26 | 12977875 |
| 27 | 13845841 |
| 28 | 16194277 |