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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 2 |
| 6 | 5 |
| 7 | 10 |
| 8 | 16 |
| 9 | 34 |
| 10 | 68 |
| 11 | 128 |
| 12 | 264 |
| 13 | 536 |
| 14 | 1073 |
| 15 | 2217 |
| 16 | 4569 |
| 17 | 9404 |
| 18 | 19594 |
| 19 | 40875 |
| 20 | 85420 |
| 21 | 179525 |
| 22 | 378069 |
| 23 | 797935 |
| 24 | 1689550 |
| 25 | 3584560 |
| 26 | 7620071 |
| 27 | 16234510 |
| 28 | 34647429 |
| 29 | 74067643 |
| 30 | 158603482 |
| 31 | 340121431 |
| 32 | 730403622 |
| 33 | 1570644830 |
| 34 | 3381674388 |
| 35 | 7289500709 |
| 36 | 15730862630 |
| 37 | 33983333681 |
[1,1,0,1,2,2,5,10,16,34,68,128,264,536,1073,2217, 4569,9404,19594,40875,85420,179525,378069,797935, 1689550,3584560,7620071,16234510,34647429, 74067643,158603482,340121431,730403622,1570644830, 3381674388,7289500709,15730862630,33983333681] |