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 | 7776 |
| 3 | 45064 |
| 4 | 160362 |
| 5 | 495985 |
| 6 | 1421762 |
| 7 | 3816783 |
| 8 | 9630357 |
| 9 | 22913143 |
| 10 | 51614480 |
| 11 | 110565824 |
| 12 | 226229854 |
| 13 | 443991585 |
| 14 | 839005884 |
| 15 | 1531899199 |
| 16 | 2710956117 |
| 17 | 4662807601 |
| 18 | 7814081454 |
| 19 | 12786980756 |
| 20 | 20472326754 |
| 21 | 32124242991 |
| 22 | 49481371374 |