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 | 239 |
| 2 | 269 |
| 3 | 439 |
| 4 | 569 |
| 5 | 599 |
| 6 | 829 |
| 7 | 1429 |
| 8 | 3389 |
| 9 | 6379 |
| 10 | 7159 |
| 11 | 7649 |
| 12 | 8779 |
| 13 | 8969 |
| 14 | 10799 |
| 15 | 10939 |
| 16 | 12919 |
| 17 | 13729 |
| 18 | 13879 |
| 19 | 15649 |
| 20 | 17159 |
| 21 | 18149 |
| 22 | 19379 |
| 23 | 21649 |
| 24 | 22669 |
| 25 | 23929 |
| 26 | 24799 |
| 27 | 25679 |
| 28 | 26849 |
| 29 | 28219 |
| 30 | 30389 |
| 31 | 30689 |
| 32 | 33749 |
| 33 | 34759 |
| 34 | 36109 |
| 35 | 36209 |
| 36 | 36899 |
| 37 | 40759 |
| 38 | 47659 |
| 39 | 49639 |
| 40 | 52369 |