A172765 - OEIS

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A172765 as a simple table

n	a(n)
1	0
2	0
3	352128
4	28021865662196736
5	82386976561127733213714195200
6	6159222400147050126331043386857585651398400
7	8076571943273575432916626559495058426486672272842882658769

[0,0,352128,28021865662196736, 82386976561127733213714195200, 6159222400147050126331043386857585651398400, 80765719432735754329166265594950584264866722728428\ 82658769]