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 | 9 |
| 3 | 16 |
| 4 | 169 |
| 5 | 196 |
| 6 | 961 |
| 7 | 69169 |
| 8 | 69696 |
| 9 | 9696996 |
| 10 | 16966161 |
| 11 | 611919169 |
| 12 | 6661661161 |
| 13 | 696199996996 |
| 14 | 1911961611169 |
| 15 | 99191919116196 |
| 16 | 116116119966961 |
| 17 | 116696699999166169 |
| 18 | 699666116199699961 |
| 19 | 996111661161199969 |
| 20 | 611961619961911196961 |
| 21 | 1616161166196691196196 |
| 22 | 9919969966699691196169 |