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 | 1 |
| 1 | 8 |
| 2 | 29 |
| 3 | 85 |
| 4 | 225 |
| 5 | 561 |
| 6 | 1345 |
| 7 | 3137 |
| 8 | 7169 |
| 9 | 16129 |
| 10 | 35841 |
| 11 | 78849 |
| 12 | 172033 |
| 13 | 372737 |
| 14 | 802817 |
| 15 | 1720321 |
| 16 | 3670017 |
| 17 | 7798785 |
| 18 | 16515073 |
| 19 | 34865153 |
| 20 | 73400321 |
| 21 | 154140673 |
| 22 | 322961409 |
| 23 | 675282945 |
| 24 | 1409286145 |
| 25 | 2936012801 |
| 26 | 6106906625 |
| 27 | 12683575297 |
| 28 | 26306674689 |
| 29 | 54492397569 |