The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 21222 |
| 3 | 221221222 |
| 4 | 2212221221222 |
| 5 | 22212212221221222 |
| 6 | 122122212212221221222 |
| 7 | 1222122122212212222112 |
| 8 | 21221222122122221122112 |
| 9 | 212221221222211221121221222 |
| 10 | 2212212222112211212212221221222 |
| 11 | 22122221122112122122212212221221222 |
| 12 | 222211221121221222122122212212221221222 |
[2,21222,221221222,2212221221222, 22212212221221222,122122212212221221222, 1222122122212212222112,21221222122122221122112, 212221221222211221121221222, 2212212222112211212212221221222, 22122221122112122122212212221221222, 222211221121221222122122212212221221222] |