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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 0 |
| 7 | 2 |
| 8 | 6 |
| 9 | 1 |
| 10 | 0 |
| 11 | 6 |
| 12 | 19 |
| 13 | 18 |
| 14 | 1 |
| 15 | 0 |
| 16 | 24 |
| 17 | 100 |
| 18 | 105 |
| 19 | 40 |
| 20 | 1 |
| 21 | 0 |
| 22 | 120 |
| 23 | 508 |
| 24 | 1005 |
| 25 | 430 |
| 26 | 75 |
| 27 | 1 |
| 28 | 0 |
| 29 | 720 |
| 30 | 3528 |
| 31 | 6762 |
| 32 | 6300 |
| 33 | 1400 |
| 34 | 126 |
| 35 | 1 |
| 36 | 0 |
| 37 | 5040 |
| 38 | 24876 |
| 39 | 61572 |
| 40 | 62601 |
| 41 | 28700 |
| 42 | 3822 |
| 43 | 196 |
| 44 | 1 |
| 45 | 0 |
| 46 | 40320 |
| 47 | 219168 |
| 48 | 558548 |
| 49 | 706608 |
| 50 | 431445 |
| 51 | 105336 |
| 52 | 9114 |
| 53 | 288 |
| 54 | 1 |
[1,0,1,0,1,1,0,2,6,1,0,6,19,18,1,0,24,100,105,40, 1,0,120,508,1005,430,75,1,0,720,3528,6762,6300, 1400,126,1,0,5040,24876,61572,62601,28700,3822, 196,1,0,40320,219168,558548,706608,431445,105336, 9114,288,1] |