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 | 3 |
| 3 | 31 |
| 4 | 43 |
| 5 | 37 |
| 6 | 7 |
| 7 | 709 |
| 8 | 8941 |
| 9 | 1723 |
| 10 | 163 |
| 11 | 1801 |
| 12 | 13 |
| 13 | 32077430821 |
| 14 | 313296437089 |
| 15 | 106776242048569 |
| 16 | 3345710409941689 |