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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 2 |
| 9 | 0 |
| 10 | 1 |
| 11 | 6 |
| 12 | 0 |
| 13 | 1 |
| 14 | 14 |
| 15 | 6 |
| 16 | 0 |
| 17 | 1 |
| 18 | 30 |
| 19 | 36 |
| 20 | 0 |
| 21 | 1 |
| 22 | 62 |
| 23 | 150 |
| 24 | 24 |
| 25 | 0 |
| 26 | 1 |
| 27 | 126 |
| 28 | 540 |
| 29 | 240 |
| 30 | 0 |
| 31 | 1 |
| 32 | 254 |
| 33 | 1806 |
| 34 | 1560 |
| 35 | 120 |
| 36 | 0 |
| 37 | 1 |
| 38 | 510 |
| 39 | 5796 |
| 40 | 8400 |
| 41 | 1800 |
| 42 | 0 |
| 43 | 1 |
| 44 | 1022 |
| 45 | 18150 |
| 46 | 40824 |
| 47 | 16800 |
| 48 | 720 |
| 49 | 0 |
| 50 | 1 |
| 51 | 2046 |
| 52 | 55980 |
| 53 | 186480 |
| 54 | 126000 |
| 55 | 15120 |
[1,0,0,1,0,1,0,1,2,0,1,6,0,1,14,6,0,1,30,36,0,1, 62,150,24,0,1,126,540,240,0,1,254,1806,1560,120,0, 1,510,5796,8400,1800,0,1,1022,18150,40824,16800, 720,0,1,2046,55980,186480,126000,15120] |