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 | 235 |
| 2 | 71113 |
| 3 | 192329 |
| 4 | 232931 |
| 5 | 293137 |
| 6 | 535961 |
| 7 | 616771 |
| 8 | 677173 |
| 9 | 737983 |
| 10 | 798389 |
| 11 | 838997 |
| 12 | 107109113 |
| 13 | 137139149 |
| 14 | 149151157 |
| 15 | 181191193 |
| 16 | 191193197 |
| 17 | 211223227 |
| 18 | 223227229 |
| 19 | 233239241 |
| 20 | 257263269 |
| 21 | 269271277 |
| 22 | 277281283 |
| 23 | 337347349 |
| 24 | 349353359 |
| 25 | 373379383 |
| 26 | 421431433 |
| 27 | 431433439 |