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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 11 |
| 6 | 77 |
| 7 | 363 |
| 8 | 1111 |
| 9 | 2662 |
| 10 | 24662 |
| 11 | 26642 |
| 12 | 111111 |
| 13 | 246642 |
| 14 | 11111111 |
| 15 | 363474363 |
| 16 | 2664444662 |
[0,1,2,3,11,77,363,1111,2662,24662,26642,111111, 246642,11111111,363474363,2664444662] |