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 | 8 |
| 2 | 7 |
| 3 | 24 |
| 4 | 50 |
| 5 | 139 |
| 6 | 349 |
| 7 | 853 |
| 8 | 2180 |
| 9 | 5525 |
| 10 | 13824 |
| 11 | 34900 |
| 12 | 88161 |
| 13 | 221923 |
| 14 | 559409 |
| 15 | 1411020 |
| 16 | 3556271 |
| 17 | 8964218 |
| 18 | 22600998 |
| 19 | 56974213 |
| 20 | 143622769 |
| 21 | 362071261 |
| 22 | 912756908 |
| 23 | 2300972077 |
| 24 | 5800604608 |
| 25 | 14622927344 |
| 26 | 36863258801 |
| 27 | 92929626827 |
| 28 | 234268970653 |