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 | 11 |
| 2 | 101 |
| 3 | 131 |
| 4 | 191 |
| 5 | 313 |
| 6 | 353 |
| 7 | 373 |
| 8 | 797 |
| 9 | 919 |
| 10 | 10301 |
| 11 | 11311 |
| 12 | 12721 |
| 13 | 13331 |
| 14 | 13931 |
| 15 | 14341 |
| 16 | 14741 |
| 17 | 16361 |
| 18 | 17971 |
| 19 | 18181 |
| 20 | 19391 |
| 21 | 30103 |
| 22 | 30703 |
| 23 | 33533 |
| 24 | 71317 |
| 25 | 71917 |
| 26 | 74747 |
| 27 | 75557 |
| 28 | 76367 |
| 29 | 77977 |
| 30 | 79397 |
| 31 | 90709 |
| 32 | 93139 |
| 33 | 93739 |
| 34 | 95959 |
| 35 | 96769 |
| 36 | 97379 |