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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 21 |
| 4 | 66 |
| 5 | 666 |
| 6 | 2211 |
| 7 | 6216 |
| 8 | 212226 |
| 9 | 222111 |
| 10 | 1222266 |
| 11 | 1261666 |
| 12 | 16626261 |
| 13 | 22121226 |
| 14 | 22221111 |
| 15 | 121111266 |
| 16 | 126222216 |
| 17 | 661261161 |
| 18 | 2162616261 |
| 19 | 2221211226 |
| 20 | 2222211111 |
| 21 | 21166222626 |
| 22 | 66126661611 |
| 23 | 166122226621 |
| 24 | 216262612611 |
| 25 | 222212111226 |
| 26 | 222222111111 |
| 27 | 22162261612611 |
[1,6,21,66,666,2211,6216,212226,222111,1222266, 1261666,16626261,22121226,22221111,121111266, 126222216,661261161,2162616261,2221211226, 2222211111,21166222626,66126661611,166122226621, 216262612611,222212111226,222222111111, 22162261612611] |