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 | 16 |
| 2 | 89 |
| 3 | 100 |
| 4 | 169 |
| 5 | 311 |
| 6 | 749 |
| 7 | 1803 |
| 8 | 4257 |
| 9 | 10353 |
| 10 | 25491 |
| 11 | 62623 |
| 12 | 154129 |
| 13 | 380187 |
| 14 | 938001 |
| 15 | 2314659 |
| 16 | 5713631 |
| 17 | 14105377 |
| 18 | 34823513 |
| 19 | 85976895 |
| 20 | 212277137 |
| 21 | 524117847 |
| 22 | 1294070913 |
| 23 | 3195138873 |
| 24 | 7889010751 |
| 25 | 19478522291 |
| 26 | 48093894353 |
| 27 | 118747410843 |