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) |
|---|---|
| 0 | 1 |
| 1 | 34 |
| 2 | 594 |
| 3 | 7106 |
| 4 | 65449 |
| 5 | 494768 |
| 6 | 3195983 |
| 7 | 18134478 |
| 8 | 92219577 |
| 9 | 426746308 |
| 10 | 1818523916 |
| 11 | 7204803796 |
| 12 | 26747139312 |
| 13 | 93651006988 |
| 14 | 310966484313 |
| 15 | 983825011398 |
| 16 | 2977708459669 |
| 17 | 8652371731716 |
| 18 | 24211251121429 |
| 19 | 65420187465158 |