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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 6 |
| 4 | 0 |
| 5 | 260 |
| 6 | 20720 |
| 7 | 6 |
| 8 | 5112 |
| 9 | 1223136 |
| 10 | 257706024 |
| 11 | 48 |
| 12 | 81876 |
| 13 | 67769552 |
| 14 | 54278580036 |
| 15 | 44900438149488 |
| 16 | 260 |
| 17 | 1223396 |
| 18 | 3731753700 |
| 19 | 11681058472672 |
| 20 | 38403264917970196 |
| 21 | 131160169581733489616 |
| 22 | 1200 |
| 23 | 17815020 |
| 24 | 207438938000 |
| 25 | 2570217454576416 |
| 26 | 33725471278376393424 |
| 27 | 460532748521625850986660 |
| 28 | 6467585568566200114362823920 |
| 29 | 5106 |
| 30 | 257706012 |
| 31 | 11681057249536 |
| 32 | 576229125971686224 |
[0,0,6,0,260,20720,6,5112,1223136,257706024,48, 81876,67769552,54278580036,44900438149488,260, 1223396,3731753700,11681058472672, 38403264917970196,131160169581733489616,1200, 17815020,207438938000,2570217454576416, 33725471278376393424,460532748521625850986660, 6467585568566200114362823920,5106,257706012, 11681057249536,576229125971686224] |