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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 6 |
| 8 | 0 |
| 9 | 1 |
| 10 | 8 |
| 11 | 0 |
| 12 | 12 |
| 13 | 0 |
| 14 | 1 |
| 15 | 0 |
| 16 | 40 |
| 17 | 0 |
| 18 | 20 |
| 19 | 0 |
| 20 | 1 |
| 21 | 144 |
| 22 | 0 |
| 23 | 120 |
| 24 | 0 |
| 25 | 30 |
| 26 | 0 |
| 27 | 1 |
| 28 | 0 |
| 29 | 1008 |
| 30 | 0 |
| 31 | 280 |
| 32 | 0 |
| 33 | 42 |
| 34 | 0 |
| 35 | 1 |
| 36 | 5760 |
| 37 | 0 |
| 38 | 4032 |
| 39 | 0 |
| 40 | 560 |
| 41 | 0 |
| 42 | 56 |
| 43 | 0 |
| 44 | 1 |
| 45 | 0 |
| 46 | 51840 |
| 47 | 0 |
| 48 | 12096 |
| 49 | 0 |
| 50 | 1008 |
| 51 | 0 |
| 52 | 72 |
| 53 | 0 |
| 54 | 1 |
| 55 | 403200 |
| 56 | 0 |
| 57 | 259200 |
| 58 | 0 |
| 59 | 30240 |
| 60 | 0 |
| 61 | 1680 |
| 62 | 0 |
| 63 | 90 |
| 64 | 0 |
| 65 | 1 |
[1,0,1,2,0,1,0,6,0,1,8,0,12,0,1,0,40,0,20,0,1,144, 0,120,0,30,0,1,0,1008,0,280,0,42,0,1,5760,0,4032, 0,560,0,56,0,1,0,51840,0,12096,0,1008,0,72,0,1, 403200,0,259200,0,30240,0,1680,0,90,0,1] |