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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 2 |
| 3 | 0 |
| 4 | 3 |
| 5 | 4 |
| 6 | 0 |
| 7 | 8 |
| 8 | 18 |
| 9 | 8 |
| 10 | 0 |
| 11 | 30 |
| 12 | 91 |
| 13 | 72 |
| 14 | 16 |
| 15 | 0 |
| 16 | 144 |
| 17 | 540 |
| 18 | 590 |
| 19 | 240 |
| 20 | 32 |
| 21 | 0 |
| 22 | 840 |
| 23 | 3718 |
| 24 | 5085 |
| 25 | 2900 |
| 26 | 720 |
| 27 | 64 |
| 28 | 0 |
| 29 | 5760 |
| 30 | 29232 |
| 31 | 47516 |
| 32 | 34230 |
| 33 | 12040 |
| 34 | 2016 |
| 35 | 128 |
| 36 | 0 |
| 37 | 45360 |
| 38 | 258732 |
| 39 | 484092 |
| 40 | 416857 |
| 41 | 186480 |
| 42 | 44576 |
| 43 | 5376 |
| 44 | 256 |
| 45 | 0 |
| 46 | 403200 |
| 47 | 2547360 |
| 48 | 5368184 |
| 49 | 5340888 |
| 50 | 2869314 |
| 51 | 876960 |
| 52 | 151872 |
| 53 | 13824 |
| 54 | 512 |
[1,0,2,0,3,4,0,8,18,8,0,30,91,72,16,0,144,540,590, 240,32,0,840,3718,5085,2900,720,64,0,5760,29232, 47516,34230,12040,2016,128,0,45360,258732,484092, 416857,186480,44576,5376,256,0,403200,2547360, 5368184,5340888,2869314,876960,151872,13824,512] |