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 | 64 |
| 3 | 292 |
| 4 | 1298 |
| 5 | 5172 |
| 6 | 20316 |
| 7 | 77752 |
| 8 | 295720 |
| 9 | 1117080 |
| 10 | 4209924 |
| 11 | 15835990 |
| 12 | 59521532 |
| 13 | 223600028 |
| 14 | 839772726 |
| 15 | 3153450118 |
| 16 | 11840705184 |
| 17 | 44458053838 |
| 18 | 166922053694 |
| 19 | 626717259422 |
| 20 | 2353026409758 |
| 21 | 8834468527674 |
| 22 | 33169066709822 |
| 23 | 124533341936372 |