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 | 61 |
| 4 | 41 |
| 5 | 3001 |
| 6 | 61 |
| 7 | 141961 |
| 8 | 2161 |
| 9 | 109441 |
| 10 | 3001 |
| 11 | 474541 |
| 12 | 2521 |
| 13 | 14736206161 |
| 14 | 141961 |
| 15 | 230686501 |
| 16 | 3041 |
| 17 | 3415914041 |
| 18 | 109441 |
| 19 | 67735001 |
| 20 | 570601 |
| 21 | 8288823481 |
| 22 | 474541 |
| 23 | 2441738887963981 |
| 24 | 20641 |
| 25 | 158414167964045700001 |
| 26 | 14736206161 |
| 27 | 1114769954367361 |
| 28 | 12317523121 |
| 29 | 349619996930737079890201 |