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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 3 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 12 |
| 11 | 5 |
| 12 | 3 |
| 13 | 3 |
| 14 | 1 |
| 15 | 60 |
| 16 | 27 |
| 17 | 14 |
| 18 | 12 |
| 19 | 6 |
| 20 | 1 |
| 21 | 360 |
| 22 | 168 |
| 23 | 83 |
| 24 | 62 |
| 25 | 36 |
| 26 | 10 |
| 27 | 1 |
| 28 | 2520 |
| 29 | 1200 |
| 30 | 583 |
| 31 | 393 |
| 32 | 242 |
| 33 | 86 |
| 34 | 15 |
| 35 | 1 |
| 36 | 20160 |
| 37 | 9720 |
| 38 | 4698 |
| 39 | 2941 |
| 40 | 1845 |
| 41 | 758 |
| 42 | 176 |
| 43 | 21 |
| 44 | 1 |
| 45 | 181440 |
| 46 | 88200 |
| 47 | 42606 |
| 48 | 25285 |
| 49 | 15856 |
| 50 | 7151 |
| 51 | 1990 |
| 52 | 323 |
| 53 | 28 |
| 54 | 1 |
| 55 | 1814400 |
| 56 | 887040 |
[1,0,1,1,0,1,3,1,1,1,12,5,3,3,1,60,27,14,12,6,1, 360,168,83,62,36,10,1,2520,1200,583,393,242,86,15, 1,20160,9720,4698,2941,1845,758,176,21,1,181440, 88200,42606,25285,15856,7151,1990,323,28,1, 1814400,887040] |