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 | 46656 |
| 3 | 349280 |
| 4 | 1351748 |
| 5 | 4231138 |
| 6 | 12340932 |
| 7 | 34697869 |
| 8 | 94262290 |
| 9 | 246254814 |
| 10 | 616242552 |
| 11 | 1475123504 |
| 12 | 3379586703 |
| 13 | 7423803582 |
| 14 | 15672970622 |
| 15 | 31884279651 |
| 16 | 62668814332 |
| 17 | 119312143790 |
| 18 | 220555944774 |
| 19 | 396752366132 |
| 20 | 695942226325 |