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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 10 |
| 6 | 17 |
| 7 | 33 |
| 8 | 58 |
| 9 | 109 |
| 10 | 202 |
| 11 | 379 |
| 12 | 720 |
| 13 | 1369 |
| 14 | 2618 |
| 15 | 5031 |
| 16 | 9701 |
| 17 | 18766 |
| 18 | 36387 |
| 19 | 70688 |
| 20 | 137572 |
| 21 | 268208 |
| 22 | 523581 |
| 23 | 1023425 |
| 24 | 2002829 |
| 25 | 3923400 |
| 26 | 7692930 |
| 27 | 15096706 |
| 28 | 29649082 |
| 29 | 58270386 |
| 30 | 114596178 |
| 31 | 225503077 |
| 32 | 443996993 |
| 33 | 874648723 |
| 34 | 1723849033 |
[0,1,1,3,5,10,17,33,58,109,202,379,720,1369,2618, 5031,9701,18766,36387,70688,137572,268208,523581, 1023425,2002829,3923400,7692930,15096706,29649082, 58270386,114596178,225503077,443996993,874648723, 1723849033] |