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) |
|---|---|
| 2 | 83 |
| 3 | 809 |
| 4 | 8009 |
| 5 | 80021 |
| 6 | 800011 |
| 7 | 8000009 |
| 8 | 80000023 |
| 9 | 800000011 |
| 10 | 8000000011 |
| 11 | 80000000021 |
| 12 | 800000000047 |
| 13 | 8000000000009 |
| 14 | 80000000000027 |
| 15 | 800000000000017 |
| 16 | 8000000000000011 |
| 17 | 80000000000000011 |
| 18 | 800000000000000119 |