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 | 6 |
| 2 | 66 |
| 3 | 666 |
| 4 | 66066 |
| 5 | 600060 |
| 6 | 808080868686 |
| 7 | 6800080088880 |
| 8 | 600060808600606 |
| 9 | 6866666600888008866 |
| 10 | 8868600066880068688680 |
| 11 | 66888008886880660860006 |
| 12 | 8068888000086860008866800600800680 |
| 13 | 888806860800600880800086860880800680 |
| 14 | 8006680886068066868608660888886880660 |