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 | 19 |
| 2 | 199 |
| 3 | 379 |
| 4 | 739 |
| 5 | 1747 |
| 6 | 1999 |
| 7 | 3169 |
| 8 | 3259 |
| 9 | 4519 |
| 10 | 4789 |
| 11 | 4951 |
| 12 | 5689 |
| 13 | 5851 |
| 14 | 5869 |
| 15 | 6481 |
| 16 | 6679 |
| 17 | 7489 |
| 18 | 8389 |
| 19 | 9199 |
| 20 | 10729 |
| 21 | 12799 |
| 22 | 12889 |
| 23 | 13789 |
| 24 | 14149 |
| 25 | 14851 |
| 26 | 14869 |
| 27 | 15679 |
| 28 | 17389 |
| 29 | 17497 |
| 30 | 17659 |
| 31 | 17929 |
| 32 | 22699 |
| 33 | 26479 |
| 34 | 26497 |
| 35 | 26839 |
| 36 | 28297 |
| 37 | 28549 |
| 38 | 29179 |