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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 3 |
| 8 | 4 |
| 9 | 4 |
| 10 | 0 |
| 11 | 4 |
| 12 | 5 |
| 13 | 6 |
| 14 | 13 |
| 15 | 0 |
| 16 | 8 |
| 17 | 14 |
| 18 | 35 |
| 19 | 95 |
| 20 | 40 |
| 21 | 0 |
| 22 | 10 |
| 23 | 122 |
| 24 | 81 |
| 25 | 346 |
| 26 | 525 |
| 27 | 162 |
| 28 | 0 |
| 29 | 55 |
| 30 | 196 |
| 31 | 1758 |
| 32 | 3915 |
| 33 | 6109 |
| 34 | 7420 |
| 35 | 888 |
| 36 | 0 |
| 37 | 72 |
| 38 | 1861 |
| 39 | 3964 |
| 40 | 43771 |
| 41 | 52190 |
| 42 | 101272 |
| 43 | 40428 |
| 44 | 3617 |
| 45 | 0 |
| 46 | 294 |
| 47 | 4042 |
| 48 | 114039 |
| 49 | 524135 |
| 50 | 1466810 |
| 51 | 2793098 |
| 52 | 1809959 |
| 53 | 636953 |
| 54 | 18136 |
| 55 | 0 |
[1,0,0,0,0,0,3,4,4,0,4,5,6,13,0,8,14,35,95,40,0, 10,122,81,346,525,162,0,55,196,1758,3915,6109, 7420,888,0,72,1861,3964,43771,52190,101272,40428, 3617,0,294,4042,114039,524135,1466810,2793098, 1809959,636953,18136,0] |