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 | 504 |
| 4 | 3962 |
| 5 | 31024 |
| 6 | 242226 |
| 7 | 1886252 |
| 8 | 14654952 |
| 9 | 113629480 |
| 10 | 879470154 |
| 11 | 6796127732 |
| 12 | 52443005888 |
| 13 | 404170590152 |
| 14 | 3111359345068 |
| 15 | 23927329547328 |
| 16 | 183840499514208 |
| 17 | 1411335451447128 |
| 18 | 10826702362761906 |
| 19 | 82998453154738884 |