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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 1 |
| 5 | 2 |
| 6 | 7 |
| 7 | 12 |
| 8 | 14 |
| 9 | 27 |
| 10 | 50 |
| 11 | 91 |
| 12 | 178 |
| 13 | 335 |
| 14 | 611 |
| 15 | 1156 |
| 16 | 2147 |
| 17 | 4042 |
| 18 | 7831 |
| 19 | 14724 |
| 20 | 28227 |
| 21 | 53736 |
| 22 | 102482 |
| 23 | 196303 |
| 24 | 376121 |
| 25 | 723408 |
| 26 | 1393572 |
| 27 | 2683465 |
| 28 | 5180304 |
| 29 | 10009707 |
| 30 | 19366479 |
| 31 | 37509260 |
| 32 | 72706948 |
| 33 | 141074303 |
| 34 | 273975483 |
| 35 | 532538340 |
[1,1,2,1,2,7,12,14,27,50,91,178,335,611,1156,2147, 4042,7831,14724,28227,53736,102482,196303,376121, 723408,1393572,2683465,5180304,10009707,19366479, 37509260,72706948,141074303,273975483,532538340] |