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 | 1 |
| 2 | 16 |
| 3 | 1156 |
| 4 | 6561 |
| 5 | 111556 |
| 6 | 556516 |
| 7 | 6661561 |
| 8 | 11115556 |
| 9 | 165611161 |
| 10 | 1111155556 |
| 11 | 1566655561 |
| 12 | 6661661161 |
| 13 | 111111555556 |
| 14 | 1551155666116 |
| 15 | 1561665111556 |
| 16 | 11111115555556 |
| 17 | 156166661115556 |
| 18 | 1111111155555556 |
| 19 | 111111111555555556 |
| 20 | 5115511551651111556 |
| 21 | 11111111115555555556 |