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 | 107 |
| 3 | 10973 |
| 4 | 37039 |
| 5 | 186619 |
| 6 | 2125757 |
| 7 | 2634011 |
| 8 | 5323949 |
| 9 | 5470519 |
| 10 | 6406447 |
| 11 | 7443463 |
| 12 | 8001491 |
| 13 | 12967153 |
| 14 | 20353771 |
| 15 | 27435973 |
| 16 | 29659499 |
| 17 | 57395627 |
| 18 | 66325487 |
| 19 | 99588343 |
| 20 | 104792291 |
| 21 | 129847021 |
| 22 | 134793059 |
| 23 | 153090997 |
| 24 | 172974199 |
| 25 | 186623993 |
| 26 | 271669247 |
| 27 | 283831771 |
| 28 | 343064479 |