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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 4 |
| 5 | 4 |
| 6 | 0 |
| 7 | 7 |
| 8 | 13 |
| 9 | 6 |
| 10 | 10 |
| 11 | 38 |
| 12 | 32 |
| 13 | 17 |
| 14 | 74 |
| 15 | 103 |
| 16 | 59 |
| 17 | 139 |
| 18 | 266 |
| 19 | 191 |
| 20 | 247 |
| 21 | 593 |
| 22 | 581 |
| 23 | 513 |
| 24 | 1175 |
| 25 | 1487 |
| 26 | 1190 |
| 27 | 2223 |
| 28 | 3453 |
| 29 | 2938 |
| 30 | 4158 |
| 31 | 7264 |
| 32 | 7095 |
| 33 | 8052 |
| 34 | 14430 |
| 35 | 16308 |
| 36 | 16246 |
| 37 | 27364 |
| 38 | 35347 |
| 39 | 34096 |
| 40 | 50997 |
| 41 | 72595 |
| 42 | 72163 |
| 43 | 94707 |
| 44 | 142522 |
| 45 | 151435 |
| 46 | 178047 |
| 47 | 270112 |
[1,1,0,0,4,4,0,7,13,6,10,38,32,17,74,103,59,139, 266,191,247,593,581,513,1175,1487,1190,2223,3453, 2938,4158,7264,7095,8052,14430,16308,16246,27364, 35347,34096,50997,72595,72163,94707,142522,151435, 178047,270112] |