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 | 11 |
| 3 | 13 |
| 4 | 29 |
| 5 | 43 |
| 6 | 53 |
| 7 | 283 |
| 8 | 557 |
| 9 | 563 |
| 10 | 613 |
| 11 | 691 |
| 12 | 2731 |
| 13 | 5147 |
| 14 | 5323 |
| 15 | 9533 |
| 16 | 10771 |
| 17 | 221891 |
| 18 | 235099 |
| 19 | 305867 |
| 20 | 311027 |
| 21 | 333227 |
| 22 | 792061 |
| 23 | 1347781 |
| 24 | 1669219 |
| 25 | 1882787 |
| 26 | 2305781 |