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 | 2 |
| 2 | 7 |
| 3 | 227 |
| 4 | 277 |
| 5 | 727 |
| 6 | 2027 |
| 7 | 2207 |
| 8 | 2707 |
| 9 | 2777 |
| 10 | 7027 |
| 11 | 7207 |
| 12 | 7727 |
| 13 | 20707 |
| 14 | 22027 |
| 15 | 22277 |
| 16 | 22727 |
| 17 | 22777 |
| 18 | 27077 |
| 19 | 27277 |
| 20 | 70207 |
| 21 | 72077 |
| 22 | 72227 |
| 23 | 72277 |
| 24 | 72707 |
| 25 | 72727 |
| 26 | 200227 |
| 27 | 202277 |
| 28 | 202777 |
| 29 | 207227 |
| 30 | 222007 |
| 31 | 222707 |
| 32 | 227027 |
| 33 | 227207 |
| 34 | 227707 |
| 35 | 272227 |
| 36 | 272777 |
| 37 | 277007 |