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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 2 |
| 4 | 0 |
| 5 | 0 |
| 6 | 6 |
| 7 | 0 |
| 8 | 0 |
| 9 | 14 |
| 10 | 0 |
| 11 | 0 |
| 12 | 32 |
| 13 | 0 |
| 14 | 0 |
| 15 | 66 |
| 16 | 0 |
| 17 | 0 |
| 18 | 134 |
| 19 | 0 |
| 20 | 0 |
| 21 | 256 |
| 22 | 0 |
| 23 | 0 |
| 24 | 480 |
| 25 | 0 |
| 26 | 0 |
| 27 | 868 |
| 28 | 0 |
| 29 | 0 |
| 30 | 1540 |
| 31 | 0 |
| 32 | 0 |
| 33 | 2664 |
| 34 | 0 |
| 35 | 0 |
| 36 | 4536 |
| 37 | 0 |
| 38 | 0 |
| 39 | 7574 |
| 40 | 0 |
| 41 | 0 |
| 42 | 12474 |
| 43 | 0 |
| 44 | 0 |
| 45 | 20234 |
| 46 | 0 |
| 47 | 0 |
| 48 | 32428 |
| 49 | 0 |
| 50 | 0 |
| 51 | 51324 |
| 52 | 0 |
| 53 | 0 |
| 54 | 80388 |
| 55 | 0 |
| 56 | 0 |
| 57 | 124582 |
| 58 | 0 |
| 59 | 0 |
| 60 | 191310 |
| 61 | 0 |
| 62 | 0 |
| 63 | 291114 |
| 64 | 0 |
| 65 | 0 |
| 66 | 439394 |
| 67 | 0 |
| 68 | 0 |
| 69 | 657936 |
| 70 | 0 |
| 71 | 0 |
[1,0,0,2,0,0,6,0,0,14,0,0,32,0,0,66,0,0,134,0,0, 256,0,0,480,0,0,868,0,0,1540,0,0,2664,0,0,4536,0, 0,7574,0,0,12474,0,0,20234,0,0,32428,0,0,51324,0, 0,80388,0,0,124582,0,0,191310,0,0,291114,0,0, 439394,0,0,657936,0,0] |