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 | 357 |
| 2 | 131719 |
| 3 | 434753 |
| 4 | 475359 |
| 5 | 717379 |
| 6 | 97101103 |
| 7 | 101103107 |
| 8 | 103107109 |
| 9 | 109113127 |
| 10 | 139149151 |
| 11 | 151157163 |
| 12 | 157163167 |
| 13 | 163167173 |
| 14 | 167173179 |
| 15 | 173179181 |
| 16 | 193197199 |
| 17 | 197199211 |
| 18 | 199211223 |
| 19 | 227229233 |
| 20 | 241251257 |
| 21 | 281283293 |
| 22 | 293307311 |
| 23 | 331337347 |
| 24 | 347349353 |
| 25 | 367373379 |
| 26 | 397401409 |
| 27 | 461463467 |
| 28 | 487491499 |