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 | 27 |
| 1 | 729 |
| 2 | 3375 |
| 3 | 9261 |
| 4 | 19683 |
| 5 | 35937 |
| 6 | 59319 |
| 7 | 91125 |
| 8 | 132651 |
| 9 | 185193 |
| 10 | 250047 |
| 11 | 328509 |
| 12 | 421875 |
| 13 | 531441 |
| 14 | 658503 |
| 15 | 804357 |
| 16 | 970299 |
| 17 | 1157625 |
| 18 | 1367631 |
| 19 | 1601613 |
| 20 | 1860867 |
| 21 | 2146689 |
| 22 | 2460375 |
| 23 | 2803221 |
| 24 | 3176523 |
| 25 | 3581577 |
| 26 | 4019679 |
| 27 | 4492125 |
| 28 | 5000211 |
| 29 | 5545233 |
| 30 | 6128487 |
| 31 | 6751269 |