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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 24 |
| 4 | 80 |
| 5 | 168 |
| 6 | 344 |
| 7 | 624 |
| 8 | 1008 |
| 9 | 1584 |
| 10 | 2368 |
| 11 | 3360 |
| 12 | 4704 |
| 13 | 6384 |
| 14 | 8408 |
| 15 | 10984 |
| 16 | 14064 |
| 17 | 17664 |
| 18 | 22056 |
| 19 | 27152 |
| 20 | 32976 |
| 21 | 39888 |
| 22 | 47736 |
| 23 | 56544 |
| 24 | 66776 |
| 25 | 78216 |
| 26 | 90888 |
| 27 | 105360 |
| 28 | 121344 |
| 29 | 138864 |
| 30 | 158616 |
| 31 | 180216 |
| 32 | 203688 |
| 33 | 229856 |
| 34 | 258248 |
| 35 | 288888 |
| 36 | 322728 |
| 37 | 359200 |
[0,0,24,80,168,344,624,1008,1584,2368,3360,4704, 6384,8408,10984,14064,17664,22056,27152,32976, 39888,47736,56544,66776,78216,90888,105360,121344, 138864,158616,180216,203688,229856,258248,288888, 322728,359200] |