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 | 6 |
| 2 | 3 |
| 3 | 47 |
| 4 | 10 |
| 5 | 324 |
| 6 | 23 |
| 7 | 1338 |
| 8 | 3261 |
| 9 | 2779 |
| 10 | 2314 |
| 11 | 13067 |
| 12 | 526096 |
| 13 | 4308 |
| 14 | 43369732 |
| 15 | 205883268 |
| 16 | 418113170 |
| 17 | 1636119595 |
| 18 | 1938732984 |
| 19 | 35048134702 |