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 | 16 |
| 2 | 61 |
| 3 | 1166 |
| 4 | 1616 |
| 5 | 1661 |
| 6 | 6116 |
| 7 | 6161 |
| 8 | 6611 |
| 9 | 111666 |
| 10 | 116166 |
| 11 | 116616 |
| 12 | 116661 |
| 13 | 161166 |
| 14 | 161616 |
| 15 | 161661 |
| 16 | 166116 |
| 17 | 166161 |
| 18 | 166611 |
| 19 | 611166 |
| 20 | 611616 |
| 21 | 611661 |
| 22 | 616116 |
| 23 | 616161 |
| 24 | 616611 |
| 25 | 661116 |
| 26 | 661161 |
| 27 | 661611 |
| 28 | 666111 |