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 | 5 |
| 3 | 19 |
| 4 | 53 |
| 5 | 71 |
| 6 | 653 |
| 7 | 661 |
| 8 | 10343 |
| 9 | 49307 |
| 10 | 115597 |
| 11 | 152783 |