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 | 57 |
| 3 | 111317 |
| 4 | 19232931 |
| 5 | 3741434753 |
| 6 | 596167717379 |
| 7 | 838997101103107109 |
| 8 | 113127131137139149151157 |
| 9 | 163167173179181191193197199 |
| 10 | 211223227229233239241251257263 |
| 11 | 269271277281283293307311313317331 |