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 | 5 |
| 2 | 71 |
| 3 | 111 |
| 4 | 187 |
| 5 | 239 |
| 6 | 247 |
| 7 | 473 |
| 8 | 628 |
| 9 | 847 |
| 10 | 1478 |
| 11 | 2687 |
| 12 | 3530 |
| 13 | 5175 |
| 14 | 9113 |
| 15 | 10968 |
| 16 | 15039 |
| 17 | 28929 |
| 18 | 35649 |
| 19 | 43481 |
| 20 | 44455 |
| 21 | 51269 |
| 22 | 63975 |
| 23 | 71723 |