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 | 10 |
| 2 | 29 |
| 3 | 97 |
| 4 | 297 |
| 5 | 904 |
| 6 | 2685 |
| 7 | 7876 |
| 8 | 22823 |
| 9 | 65533 |
| 10 | 186691 |
| 11 | 528370 |
| 12 | 1486969 |
| 13 | 4164382 |
| 14 | 11613137 |
| 15 | 32264089 |
| 16 | 89339325 |
| 17 | 246645436 |
| 18 | 679111413 |
| 19 | 1865340568 |
| 20 | 5112351131 |
| 21 | 13983383605 |
| 22 | 38177371159 |
| 23 | 104055773542 |
| 24 | 283171508977 |