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 | 5 |
| 3 | 3 |
| 4 | 11 |
| 5 | 97 |
| 6 | 503 |
| 7 | 499 |
| 8 | 491 |
| 9 | 14303 |
| 10 | 14293 |
| 11 | 157259 |
| 12 | 157253 |
| 13 | 1525723 |
| 14 | 4576997 |
| 15 | 4576993 |
| 16 | 4576991 |
| 17 | 10411013 |
| 18 | 33388093 |
| 19 | 188332121 |
| 20 | 194259301 |
| 21 | 2853982501 |
| 22 | 2853982499 |
| 23 | 2853982477 |
| 24 | 3913474277 |
| 25 | 10883385143 |
| 26 | 22809734971 |
| 27 | 34883348389 |
| 28 | 34883348369 |
| 29 | 34883348341 |