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 | 15121 |
| 2 | 35521 |
| 3 | 52321 |
| 4 | 117841 |
| 5 | 235441 |
| 6 | 313561 |
| 7 | 398821 |
| 8 | 516421 |
| 9 | 520021 |
| 10 | 531121 |
| 11 | 570601 |
| 12 | 623641 |
| 13 | 761113 |
| 14 | 838561 |
| 15 | 941041 |
| 16 | 1117321 |
| 17 | 1190821 |
| 18 | 1317361 |
| 19 | 1333621 |
| 20 | 1336177 |
| 21 | 1372081 |
| 22 | 1413793 |
| 23 | 1424041 |
| 24 | 1431361 |
| 25 | 1488901 |
| 26 | 1513921 |
| 27 | 1560121 |