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 | 505 |
| 4 | 3977 |
| 5 | 31276 |
| 6 | 245626 |
| 7 | 1926444 |
| 8 | 15089356 |
| 9 | 118040270 |
| 10 | 922247248 |
| 11 | 7196716310 |
| 12 | 56092274904 |
| 13 | 436681564144 |
| 14 | 3395712755366 |
| 15 | 26376195676360 |
| 16 | 204653424502050 |
| 17 | 1586213921445534 |
| 18 | 12281469122143732 |
| 19 | 94993604706706795 |