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 | 13 |
| 2 | 29 |
| 3 | 53 |
| 4 | 173 |
| 5 | 293 |
| 6 | 1373 |
| 7 | 2213 |
| 8 | 4493 |
| 9 | 5333 |
| 10 | 9413 |
| 11 | 10613 |
| 12 | 18773 |
| 13 | 26573 |
| 14 | 27893 |
| 15 | 37253 |
| 16 | 54293 |
| 17 | 76733 |
| 18 | 85853 |
| 19 | 94253 |
| 20 | 97973 |
| 21 | 100493 |
| 22 | 120413 |
| 23 | 139133 |
| 24 | 214373 |
| 25 | 237173 |
| 26 | 253013 |
| 27 | 299213 |
| 28 | 332933 |
| 29 | 351653 |
| 30 | 368453 |
| 31 | 375773 |
| 32 | 458333 |
| 33 | 552053 |
| 34 | 619373 |