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 | 12421 |
| 2 | 12541 |
| 3 | 12641 |
| 4 | 12653 |
| 5 | 12721 |
| 6 | 12743 |
| 7 | 12763 |
| 8 | 12821 |
| 9 | 12841 |
| 10 | 12853 |
| 11 | 12941 |
| 12 | 12953 |
| 13 | 12973 |
| 14 | 12983 |
| 15 | 13421 |
| 16 | 13721 |
| 17 | 13751 |
| 18 | 13763 |
| 19 | 13831 |
| 20 | 13841 |
| 21 | 13873 |
| 22 | 13921 |
| 23 | 13931 |
| 24 | 13963 |
| 25 | 14543 |
| 26 | 14621 |
| 27 | 14653 |
| 28 | 14731 |
| 29 | 14741 |
| 30 | 14753 |
| 31 | 14821 |
| 32 | 14831 |
| 33 | 14843 |
| 34 | 14851 |
| 35 | 14951 |
| 36 | 14983 |