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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 8 |
| 4 | 29 |
| 5 | 103 |
| 6 | 442 |
| 7 | 1953 |
| 8 | 9502 |
| 9 | 48533 |
| 10 | 262634 |
| 11 | 1485764 |
| 12 | 8777397 |
[1,3,8,29,103,442,1953,9502,48533,262634,1485764, 8777397] |