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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 10 |
| 3 | 110 |
| 4 | 1310 |
| 5 | 16610 |
| 6 | 221010 |
| 7 | 3051510 |
| 8 | 43357110 |
| 9 | 630098810 |
| 10 | 9324499610 |
| 11 | 140046944510 |
| 12 | 2129440330510 |
| 13 | 32716182966610 |
| 14 | 507115641523810 |
| 15 | 7920881045935110 |
| 16 | 124548017695545510 |
| 17 | 1969917348711212010 |
[0,1,10,110,1310,16610,221010,3051510,43357110, 630098810,9324499610,140046944510,2129440330510, 32716182966610,507115641523810,7920881045935110, 124548017695545510,1969917348711212010] |