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 | 5 |
| 4 | 239 |
| 5 | 2521 |
| 6 | 12239 |
| 7 | 121421 |
| 8 | 869657 |
| 9 | 23638231 |
| 10 | 30656909 |
| 11 | 47964149 |
| 12 | 48203291 |
| 13 | 57273361 |
| 14 | 552014783 |
| 15 | 754751369 |
| 16 | 941234383 |