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 | 11 |
| 2 | 101 |
| 3 | 181 |
| 4 | 811 |
| 5 | 881 |
| 6 | 1181 |
| 7 | 1801 |
| 8 | 1811 |
| 9 | 8011 |
| 10 | 8081 |
| 11 | 8101 |
| 12 | 8111 |
| 13 | 10111 |
| 14 | 10181 |
| 15 | 11801 |
| 16 | 18181 |
| 17 | 80111 |
| 18 | 81001 |
| 19 | 81101 |
| 20 | 81181 |
| 21 | 88001 |
| 22 | 88801 |
| 23 | 88811 |
| 24 | 100801 |
| 25 | 100811 |
| 26 | 101081 |
| 27 | 101111 |
| 28 | 108011 |
| 29 | 108881 |
| 30 | 110881 |
| 31 | 118081 |
| 32 | 118801 |
| 33 | 180001 |
| 34 | 180181 |
| 35 | 180811 |