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 | 2 |
| 2 | 12 |
| 3 | 78 |
| 4 | 461 |
| 5 | 2516 |
| 6 | 12975 |
| 7 | 64256 |
| 8 | 308895 |
| 9 | 1451996 |
| 10 | 6707709 |
| 11 | 30563338 |
| 12 | 137715999 |
| 13 | 614855772 |
| 14 | 2724027619 |