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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 6 |
| 3 | 14 |
| 4 | 32 |
| 5 | 66 |
| 6 | 134 |
| 7 | 256 |
| 8 | 480 |
| 9 | 868 |
| 10 | 1540 |
| 11 | 2664 |
| 12 | 4536 |
| 13 | 7574 |
| 14 | 12474 |
| 15 | 20234 |
| 16 | 32428 |
| 17 | 51324 |
| 18 | 80388 |
| 19 | 124582 |
| 20 | 191310 |
| 21 | 291114 |
| 22 | 439394 |
| 23 | 657936 |
| 24 | 978054 |
| 25 | 1443684 |
| 26 | 2117136 |
| 27 | 3085174 |
| 28 | 4469368 |
| 29 | 6437742 |
| 30 | 9223324 |
| 31 | 13145792 |
| 32 | 18644484 |
| 33 | 26317916 |
| 34 | 36981828 |
[1,2,6,14,32,66,134,256,480,868,1540,2664,4536, 7574,12474,20234,32428,51324,80388,124582,191310, 291114,439394,657936,978054,1443684,2117136, 3085174,4469368,6437742,9223324,13145792,18644484, 26317916,36981828] |