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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 111 |
| 3 | 11211 |
| 4 | 1122211 |
| 5 | 112232211 |
| 6 | 11223332211 |
| 7 | 1122334332211 |
| 8 | 112233444332211 |
| 9 | 11223344544332211 |
| 10 | 112233444636544332211 |
| 11 | 1122334446373736544332211 |
| 12 | 11223344463737473736544332211 |
| 13 | 112233444637374666473736544332211 |
| 14 | 1122334446373746649466473736544332211 |
| 15 | 11223344463737466492319466473736544332211 |
[1,111,11211,1122211,112232211,11223332211, 1122334332211,112233444332211,11223344544332211, 112233444636544332211,1122334446373736544332211, 11223344463737473736544332211, 112233444637374666473736544332211, 1122334446373746649466473736544332211, 11223344463737466492319466473736544332211] |