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 | 0 |
| 2 | 10099 |
| 3 | 10100 |
| 4 | 20199 |
| 5 | 20200 |
| 6 | 30299 |
| 7 | 30300 |
| 8 | 40399 |
| 9 | 40400 |
| 10 | 50499 |
| 11 | 50500 |
| 12 | 60599 |
| 13 | 60600 |
| 14 | 70699 |
| 15 | 70700 |
| 16 | 80799 |
| 17 | 80800 |
| 18 | 90899 |
| 19 | 90900 |
| 20 | 100999 |
| 21 | 101000 |
| 22 | 111099 |
| 23 | 111100 |
| 24 | 121199 |
| 25 | 121200 |
| 26 | 131299 |
| 27 | 131300 |
| 28 | 141399 |
| 29 | 141400 |
| 30 | 151499 |
| 31 | 151500 |
| 32 | 161599 |
| 33 | 161600 |
| 34 | 171699 |
| 35 | 171700 |