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 | 11 |
| 2 | 61 |
| 3 | 661 |
| 4 | 6661 |
| 5 | 11161 |
| 6 | 16111 |
| 7 | 16661 |
| 8 | 66161 |
| 9 | 111611 |
| 10 | 161611 |
| 11 | 611111 |
| 12 | 616111 |
| 13 | 1111661 |
| 14 | 1611161 |
| 15 | 1616161 |
| 16 | 1616611 |
| 17 | 1661111 |
| 18 | 1661161 |
| 19 | 1666111 |
| 20 | 6111661 |
| 21 | 6116111 |
| 22 | 6116161 |
| 23 | 6161161 |
| 24 | 6611611 |
| 25 | 6661111 |
| 26 | 6661661 |
| 27 | 11111161 |
| 28 | 11166611 |
| 29 | 11616611 |