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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 17 |
| 4 | 27 |
| 5 | 54 |
| 6 | 1727 |
| 7 | 1875 |
| 8 | 1883 |
| 9 | 6840 |
| 10 | 10781 |
| 11 | 25365 |
| 12 | 98445 |
| 13 | 137249 |
[0,3,17,27,54,1727,1875,1883,6840,10781,25365, 98445,137249] |