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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 2 |
| 18 | 82 |
| 19 | 82 |
| 20 | 2 |
| 21 | 0 |
| 22 | 0 |
| 23 | 8 |
| 24 | 842 |
| 25 | 3200 |
| 26 | 842 |
| 27 | 8 |
| 28 | 0 |
| 29 | 0 |
| 30 | 32 |
| 31 | 9068 |
| 32 | 88580 |
| 33 | 88580 |
| 34 | 9068 |
| 35 | 32 |
| 36 | 0 |
| 37 | 0 |
| 38 | 120 |
| 39 | 92538 |
| 40 | 2467778 |
| 41 | 6605632 |
| 42 | 2467778 |
| 43 | 92538 |
| 44 | 120 |
| 45 | 0 |
| 46 | 0 |
| 47 | 430 |
| 48 | 934880 |
| 49 | 68210356 |
| 50 | 501998702 |
| 51 | 501998702 |
| 52 | 68210356 |
| 53 | 934880 |
| 54 | 430 |
| 55 | 0 |
| 56 | 0 |
[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,82,82,2,0,0,8, 842,3200,842,8,0,0,32,9068,88580,88580,9068,32,0, 0,120,92538,2467778,6605632,2467778,92538,120,0,0, 430,934880,68210356,501998702,501998702,68210356, 934880,430,0,0] |