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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 72 |
| 2 | 11232 |
| 3 | 5461344 |
| 4 | 2029222656 |
| 5 | 924074630640 |
| 6 | 411487620614784 |
| 7 | 192705317913673152 |
| 8 | 91031590937141544960 |
| 9 | 43814578627107100088424 |
| 10 | 21291642032558036150652480 |
| 11 | 10450287314646252538819378464 |
| 12 | 5166676457072455262194208351232 |
[1,72,11232,5461344,2029222656,924074630640, 411487620614784,192705317913673152, 91031590937141544960,43814578627107100088424, 21291642032558036150652480, 10450287314646252538819378464, 5166676457072455262194208351232] |