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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 4 |
| 9 | 4 |
| 10 | 8 |
| 11 | 14 |
| 12 | 11 |
| 13 | 18 |
| 14 | 30 |
| 15 | 26 |
| 16 | 24 |
| 17 | 40 |
| 18 | 35 |
| 19 | 58 |
| 20 | 69 |
| 21 | 48 |
| 22 | 84 |
| 23 | 158 |
| 24 | 67 |
| 25 | 139 |
| 26 | 287 |
| 27 | 215 |
| 28 | 242 |
| 29 | 490 |
| 30 | 323 |
| 31 | 624 |
| 32 | 919 |
| 33 | 516 |
| 34 | 1072 |
| 35 | 2150 |
| 36 | 911 |
| 37 | 1891 |
| 38 | 3930 |
[0,1,1,0,1,1,2,4,4,8,14,11,18,30,26,24,40,35,58, 69,48,84,158,67,139,287,215,242,490,323,624,919, 516,1072,2150,911,1891,3930] |