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 | 13 |
| 2 | 19 |
| 3 | 109 |
| 4 | 199 |
| 5 | 829 |
| 6 | 1489 |
| 7 | 1879 |
| 8 | 2089 |
| 9 | 3259 |
| 10 | 3469 |
| 11 | 5659 |
| 12 | 9439 |
| 13 | 13009 |
| 14 | 15649 |
| 15 | 15739 |
| 16 | 16069 |
| 17 | 18049 |
| 18 | 18919 |
| 19 | 19429 |
| 20 | 21019 |
| 21 | 22279 |
| 22 | 25309 |
| 23 | 31729 |
| 24 | 34849 |
| 25 | 43789 |
| 26 | 51349 |
| 27 | 55339 |
| 28 | 62989 |
| 29 | 67219 |
| 30 | 69499 |
| 31 | 72229 |
| 32 | 77269 |
| 33 | 79699 |
| 34 | 81049 |
| 35 | 82729 |
| 36 | 88819 |
| 37 | 97849 |