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 | 243 |
| 2 | 1536 |
| 3 | 15552 |
| 4 | 157464 |
| 5 | 1658232 |
| 6 | 17587584 |
| 7 | 187446312 |
| 8 | 2000708640 |
| 9 | 21367730664 |
| 10 | 228251103552 |
| 11 | 2438324338248 |
| 12 | 26048163809952 |
| 13 | 278268995799144 |
| 14 | 2972714012485056 |
| 15 | 31757156984626632 |
| 16 | 339258043287199008 |