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 | 2 |
| 2 | 14 |
| 3 | 84 |
| 4 | 86 |
| 5 | 471 |
| 6 | 481 |
| 7 | 3570 |
| 8 | 28674 |
| 9 | 28743 |
| 10 | 29448 |
| 11 | 29457 |
| 12 | 37293 |
| 13 | 37299 |
| 14 | 239128 |
| 15 | 239793 |
| 16 | 239800 |
| 17 | 239852 |
| 18 | 239864 |
| 19 | 245780 |
| 20 | 245859 |
| 21 | 246469 |
| 22 | 246541 |
| 23 | 305733 |
| 24 | 311548 |
| 25 | 311615 |
| 26 | 312235 |
| 27 | 2108429 |
| 28 | 2114208 |
| 29 | 2114772 |
| 30 | 2629825 |