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 | 168 |
| 4 | 603 |
| 5 | 1612 |
| 6 | 3952 |
| 7 | 11452 |
| 8 | 32021 |
| 9 | 84300 |
| 10 | 231616 |
| 11 | 641775 |
| 12 | 1736910 |
| 13 | 4732822 |
| 14 | 12996466 |
| 15 | 35450695 |
| 16 | 96651608 |
| 17 | 264382416 |
| 18 | 722256895 |
| 19 | 1971272340 |
| 20 | 5385783204 |
| 21 | 14714016328 |
| 22 | 40180554949 |
| 23 | 109749174712 |
| 24 | 299799902720 |
| 25 | 818831131779 |