A015028 - OEIS

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A015028 as a simple table

n	a(n)
1	1
2	-12
3	-1884
4	3843360
5	101929750560
6	-35142523960072320
7	-157510092662430660915840
8	9177558663913662855639573043200
9	6951672507594336724476921764731548211200

[1,-12,-1884,3843360,101929750560, -35142523960072320,-157510092662430660915840, 9177558663913662855639573043200, 6951672507594336724476921764731548211200]

[1,-12,-1884,3843360,101929750560,
 -35142523960072320,-157510092662430660915840,
 9177558663913662855639573043200,
 6951672507594336724476921764731548211200]