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 | 419 |
| 3 | 619 |
| 4 | 719 |
| 5 | 919 |
| 6 | 1019 |
| 7 | 1319 |
| 8 | 1619 |
| 9 | 2719 |
| 10 | 2819 |
| 11 | 3019 |
| 12 | 3119 |
| 13 | 3319 |
| 14 | 3719 |
| 15 | 3919 |
| 16 | 4019 |
| 17 | 4219 |
| 18 | 4519 |
| 19 | 4919 |
| 20 | 5119 |
| 21 | 5419 |
| 22 | 5519 |
| 23 | 6619 |
| 24 | 6719 |
| 25 | 7019 |
| 26 | 7219 |
| 27 | 7919 |
| 28 | 8219 |
| 29 | 8419 |
| 30 | 8719 |
| 31 | 8819 |
| 32 | 9319 |
| 33 | 9419 |
| 34 | 9619 |
| 35 | 9719 |
| 36 | 11119 |
| 37 | 11519 |
| 38 | 11719 |
| 39 | 12119 |
| 40 | 12619 |
| 41 | 12919 |
| 42 | 13219 |