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 | 81 |
| 2 | 1296 |
| 3 | 5880 |
| 4 | 19608 |
| 5 | 57387 |
| 6 | 151010 |
| 7 | 363392 |
| 8 | 810436 |
| 9 | 1693423 |
| 10 | 3344982 |
| 11 | 6292120 |
| 12 | 11340202 |
| 13 | 19682181 |
| 14 | 33037788 |
| 15 | 53827802 |
| 16 | 85388930 |
| 17 | 132235237 |
| 18 | 200372476 |
| 19 | 297672078 |
| 20 | 434311972 |
| 21 | 623291815 |
| 22 | 881030622 |
| 23 | 1228055196 |
| 24 | 1689788168 |