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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 0 |
| 4 | 4 |
| 5 | 56 |
| 6 | 40 |
| 7 | 368 |
| 8 | 300 |
| 9 | 48 |
| 10 | 12 |
| 11 | 3376 |
| 12 | 3408 |
| 13 | 960 |
| 14 | 96 |
| 15 | 7536 |
| 16 | 7524 |
| 17 | 2240 |
| 18 | 436 |
| 19 | 8 |
| 20 | 42048 |
| 21 | 45112 |
| 22 | 13912 |
| 23 | 2868 |
| 24 | 168 |
| 25 | 28 |
| 26 | 97720 |
| 27 | 105980 |
| 28 | 34496 |
| 29 | 7020 |
| 30 | 832 |
| 31 | 52 |
| 32 | 8 |
| 33 | 267240 |
| 34 | 290456 |
| 35 | 100560 |
| 36 | 20576 |
| 37 | 2688 |
| 38 | 160 |
| 39 | 24 |
| 40 | 461800 |
| 41 | 509824 |
| 42 | 174400 |
| 43 | 36228 |
| 44 | 4608 |
| 45 | 324 |
| 46 | 16 |
| 47 | 1411272 |
| 48 | 1594296 |
| 49 | 569152 |
| 50 | 126408 |
| 51 | 16856 |
| 52 | 1408 |
| 53 | 104 |
[0,1,0,4,56,40,368,300,48,12,3376,3408,960,96, 7536,7524,2240,436,8,42048,45112,13912,2868,168, 28,97720,105980,34496,7020,832,52,8,267240,290456, 100560,20576,2688,160,24,461800,509824,174400, 36228,4608,324,16,1411272,1594296,569152,126408, 16856,1408,104] |