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 | 1 |
| 2 | 81 |
| 3 | 784 |
| 4 | 5329 |
| 5 | 15876 |
| 6 | 63504 |
| 7 | 118336 |
| 8 | 342225 |
| 9 | 573049 |
| 10 | 1285956 |
| 11 | 1774224 |
| 12 | 4177936 |
| 13 | 4831204 |
| 14 | 9585216 |
| 15 | 12446784 |
| 16 | 21911761 |
| 17 | 24147396 |
| 18 | 46416969 |
| 19 | 47059600 |
| 20 | 84603204 |
| 21 | 92775424 |
| 22 | 143712144 |
| 23 | 148060224 |
| 24 | 268304400 |
| 25 | 248094001 |
| 26 | 391327524 |
| 27 | 417793600 |
| 28 | 630612544 |
| 29 | 594872100 |