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A013089 as a simple table

na(n)
01
1-4
216
3-280
48320
5-628000
651414400
7-8930646400
81426497280000
9-444950339392000
10117131784689920000
11-57406016313168640000
1222526613550121973760000
13-15953943354322290304000000

[1,-4,16,-280,8320,-628000,51414400,-8930646400,
 1426497280000,-444950339392000,117131784689920000,
 -57406016313168640000,22526613550121973760000,
 -15953943354322290304000000]