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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 27 |
| 2 | 88 |
| 3 | 308 |
| 4 | 267 |
| 5 | 922 |
| 6 | 811 |
| 7 | 40 |
| 8 | 150 |
| 9 | 173 |
| 10 | 555 |
| 11 | 1751 |
| 12 | 3389 |
| 13 | 5859 |
| 14 | 10579 |
| 15 | 227865 |
| 16 | 560966 |
| 17 | 1382684 |
| 18 | 12331649 |
| 19 | 118447869 |
[0,27,88,308,267,922,811,40,150,173,555,1751,3389, 5859,10579,227865,560966,1382684,12331649, 118447869] |