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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 3 |
| 6 | 1 |
| 7 | 3 |
| 8 | 60 |
| 9 | 60 |
| 10 | 3 |
| 11 | 12 |
| 12 | 422 |
| 13 | 598 |
| 14 | 422 |
| 15 | 12 |
| 16 | 50 |
| 17 | 1840 |
| 18 | 2347 |
| 19 | 2347 |
| 20 | 1840 |
| 21 | 50 |
| 22 | 210 |
| 23 | 6456 |
| 24 | 6809 |
| 25 | 6561 |
| 26 | 6809 |
| 27 | 6456 |
| 28 | 210 |
| 29 | 861 |
| 30 | 20032 |
| 31 | 17404 |
| 32 | 15075 |
| 33 | 15075 |
| 34 | 17404 |
| 35 | 20032 |
| 36 | 861 |
| 37 | 3416 |
| 38 | 57440 |
| 39 | 41872 |
| 40 | 32548 |
| 41 | 29776 |
| 42 | 32548 |
| 43 | 41872 |
| 44 | 57440 |
| 45 | 3416 |
| 46 | 13140 |
| 47 | 155904 |
| 48 | 97565 |
| 49 | 69198 |
| 50 | 57677 |
| 51 | 57677 |
| 52 | 69198 |
| 53 | 97565 |
| 54 | 155904 |
| 55 | 13140 |
[0,0,0,1,3,1,3,60,60,3,12,422,598,422,12,50,1840, 2347,2347,1840,50,210,6456,6809,6561,6809,6456, 210,861,20032,17404,15075,15075,17404,20032,861, 3416,57440,41872,32548,29776,32548,41872,57440, 3416,13140,155904,97565,69198,57677,57677,69198, 97565,155904,13140] |