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 | 13121 |
| 2 | 117281 |
| 3 | 188831 |
| 4 | 317971 |
| 5 | 429281 |
| 6 | 624721 |
| 7 | 627791 |
| 8 | 722431 |
| 9 | 774791 |
| 10 | 883721 |
| 11 | 924731 |
| 12 | 946291 |
| 13 | 1002721 |
| 14 | 1083851 |
| 15 | 1212011 |
| 16 | 1221601 |
| 17 | 1249111 |
| 18 | 1342361 |
| 19 | 1469761 |
| 20 | 1665761 |
| 21 | 1896901 |
| 22 | 2003081 |
| 23 | 2156251 |
| 24 | 2336011 |
| 25 | 2382761 |
| 26 | 2391451 |
| 27 | 2612021 |
| 28 | 2634551 |