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 | 7 |
| 2 | 67 |
| 3 | 607 |
| 4 | 677 |
| 5 | 6007 |
| 6 | 6067 |
| 7 | 6607 |
| 8 | 7607 |
| 9 | 60077 |
| 10 | 60607 |
| 11 | 66067 |
| 12 | 67607 |
| 13 | 67777 |
| 14 | 70067 |
| 15 | 70607 |
| 16 | 70667 |
| 17 | 76607 |
| 18 | 76667 |
| 19 | 76777 |
| 20 | 606077 |
| 21 | 606607 |
| 22 | 607007 |
| 23 | 607067 |
| 24 | 607667 |
| 25 | 660067 |
| 26 | 660607 |
| 27 | 666067 |
| 28 | 666607 |
| 29 | 666667 |
| 30 | 666707 |
| 31 | 670777 |
| 32 | 676007 |
| 33 | 677077 |
| 34 | 677767 |
| 35 | 700067 |