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 | 243 |
| 1 | 59049 |
| 2 | 759375 |
| 3 | 4084101 |
| 4 | 14348907 |
| 5 | 39135393 |
| 6 | 90224199 |
| 7 | 184528125 |
| 8 | 345025251 |
| 9 | 601692057 |
| 10 | 992436543 |
| 11 | 1564031349 |
| 12 | 2373046875 |
| 13 | 3486784401 |
| 14 | 4984209207 |
| 15 | 6956883693 |
| 16 | 9509900499 |
| 17 | 12762815625 |
| 18 | 16850581551 |
| 19 | 21924480357 |
| 20 | 28153056843 |
| 21 | 35723051649 |
| 22 | 44840334375 |
| 23 | 55730836701 |