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 | 1777 |
| 2 | 2777 |
| 3 | 11777 |
| 4 | 19777 |
| 5 | 22777 |
| 6 | 26777 |
| 7 | 27773 |
| 8 | 27779 |
| 9 | 41777 |
| 10 | 43777 |
| 11 | 44777 |
| 12 | 47777 |
| 13 | 47779 |
| 14 | 50777 |
| 15 | 53777 |
| 16 | 57773 |
| 17 | 65777 |
| 18 | 67777 |
| 19 | 68777 |
| 20 | 71777 |
| 21 | 76777 |
| 22 | 77711 |
| 23 | 77713 |
| 24 | 77719 |
| 25 | 77723 |
| 26 | 77731 |
| 27 | 77743 |
| 28 | 77747 |
| 29 | 77761 |
| 30 | 77773 |
| 31 | 77783 |
| 32 | 77797 |
| 33 | 79777 |
| 34 | 80777 |