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 | 1111 |
| 2 | 1199 |
| 3 | 1681 |
| 4 | 1691 |
| 5 | 1919 |
| 6 | 1991 |
| 7 | 4141 |
| 8 | 4411 |
| 9 | 4469 |
| 10 | 4499 |
| 11 | 4609 |
| 12 | 4961 |
| 13 | 6109 |
| 14 | 6161 |
| 15 | 6611 |
| 16 | 6649 |
| 17 | 6809 |
| 18 | 8899 |
| 19 | 8989 |
| 20 | 9089 |
| 21 | 9481 |
| 22 | 9691 |
| 23 | 10109 |
| 24 | 10901 |
| 25 | 11009 |
| 26 | 11041 |
| 27 | 11099 |
| 28 | 11419 |
| 29 | 11881 |
| 30 | 14641 |
| 31 | 14801 |
| 32 | 16109 |
| 33 | 16441 |
| 34 | 16489 |
| 35 | 16999 |
| 36 | 18409 |
| 37 | 18491 |
| 38 | 18601 |
| 39 | 18689 |