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 | 149 |
| 2 | 439 |
| 3 | 1319 |
| 4 | 2069 |
| 5 | 2089 |
| 6 | 2389 |
| 7 | 2699 |
| 8 | 2819 |
| 9 | 4259 |
| 10 | 4919 |
| 11 | 5059 |
| 12 | 5689 |
| 13 | 6469 |
| 14 | 7559 |
| 15 | 8429 |
| 16 | 8669 |
| 17 | 9199 |
| 18 | 9239 |
| 19 | 9319 |
| 20 | 9769 |
| 21 | 10159 |
| 22 | 10529 |
| 23 | 14449 |
| 24 | 14479 |
| 25 | 17659 |
| 26 | 18899 |
| 27 | 19289 |
| 28 | 23879 |
| 29 | 25189 |
| 30 | 29819 |
| 31 | 33119 |
| 32 | 33149 |
| 33 | 34159 |
| 34 | 34439 |
| 35 | 35089 |
| 36 | 36229 |
| 37 | 38839 |
| 38 | 39829 |
| 39 | 40699 |