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 | 1999 |
| 2 | 3889 |
| 3 | 4789 |
| 4 | 4969 |
| 5 | 4987 |
| 6 | 5689 |
| 7 | 5779 |
| 8 | 5869 |
| 9 | 6679 |
| 10 | 6949 |
| 11 | 6967 |
| 12 | 7489 |
| 13 | 7669 |
| 14 | 7687 |
| 15 | 7759 |
| 16 | 7867 |
| 17 | 7993 |
| 18 | 8389 |
| 19 | 8677 |
| 20 | 8839 |
| 21 | 8893 |
| 22 | 8929 |
| 23 | 9199 |
| 24 | 9397 |
| 25 | 9649 |
| 26 | 9739 |
| 27 | 9829 |
| 28 | 9883 |
| 29 | 9973 |
| 30 | 12799 |
| 31 | 12889 |
| 32 | 12979 |
| 33 | 13789 |
| 34 | 13879 |
| 35 | 14779 |
| 36 | 14797 |
| 37 | 14869 |
| 38 | 14887 |
| 39 | 15679 |