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 | 3 |
| 2 | 7 |
| 3 | 39 |
| 4 | 79 |
| 5 | 359 |
| 6 | 451 |
| 7 | 1031 |
| 8 | 1039 |
| 9 | 11311 |
| 10 | 30227 |
| 11 | 47599 |
| 12 | 55731 |
| 13 | 307099 |
| 14 | 351831 |
| 15 | 418851 |