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) |
|---|---|
| 0 | 1 |
| 1 | 9 |
| 2 | 91 |
| 3 | 919 |
| 4 | 9281 |
| 5 | 93729 |
| 6 | 946571 |
| 7 | 9559439 |
| 8 | 96540961 |
| 9 | 974969049 |
| 10 | 9846231451 |
| 11 | 99437283559 |
| 12 | 1004219067041 |
| 13 | 10141627953969 |
| 14 | 102420498606731 |
| 15 | 1034346614021279 |
| 16 | 10445886638819521 |
| 17 | 105493213002216489 |