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 | 19 |
| 3 | 271 |
| 4 | 577 |
| 5 | 977 |
| 6 | 1871 |
| 7 | 8647 |
| 8 | 9479 |
| 9 | 34759 |
| 10 | 44959 |
| 11 | 63149 |