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) |
|---|---|
| 2 | 7592506760633776533 |
| 3 | 36293948155 |
| 4 | 157957457 |
| 5 | 603713 |
| 6 | 422590909 |
| 7 | 78557 |
| 8 | 6134663 |
| 9 | 1259779 |
| 10 | 575041 |
| 11 | 7892569 |
| 12 | 2931991 |
| 13 | 4095859 |
| 14 | 2541601 |
| 15 | 7892569 |
| 16 | 29169451 |
| 17 | 271577 |
| 18 | 35193889 |
| 19 | 12824269 |
| 20 | 603713 |
| 21 | 9454157 |
| 22 | 575041 |
| 23 | 7696009 |
| 24 | 5455789 |
| 25 | 41561687 |
| 26 | 7400371 |
| 27 | 2191531 |
| 28 | 29046541 |
| 29 | 2931991 |