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 | 353 |
| 2 | 7177 |
| 3 | 9239 |
| 4 | 113111 |
| 5 | 5324153 |
| 6 | 5726957 |
| 7 | 5927759 |
| 8 | 6934769 |
| 9 | 8141981 |
| 10 | 9750997 |
| 11 | 101547101 |
| 12 | 123677123 |
| 13 | 131739131 |
| 14 | 153883153 |
| 15 | 1791063179 |
| 16 | 1891129189 |
| 17 | 2011229201 |
| 18 | 2071279207 |
| 19 | 2311453231 |
| 20 | 2491579249 |
| 21 | 2631669263 |
| 22 | 2691723269 |
| 23 | 2791801279 |