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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 41 |
| 3 | 193 |
| 4 | 861 |
| 5 | 3541 |
| 6 | 14385 |
| 7 | 58289 |
| 8 | 235065 |
| 9 | 944908 |
| 10 | 3788612 |
| 11 | 15176792 |
| 12 | 60705300 |
| 13 | 242856892 |
| 14 | 971462429 |
| 15 | 3885341764 |
[1,8,41,193,861,3541,14385,58289,235065,944908, 3788612,15176792,60705300,242856892,971462429, 3885341764] |