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A118709 as a simple table

na(n)
10
2-1
3513
4-532800
51077540500
6-3831689610000
722051842087895137
8-192710430555501494272
92433436736207275231050384
10-42684202683959414242500000000
111007311823853329619224620155226025
12-31149342348518897782279760206406615040

[0,-1,513,-532800,1077540500,-3831689610000,
 22051842087895137,-192710430555501494272,
 2433436736207275231050384,
 -42684202683959414242500000000,
 1007311823853329619224620155226025,
 -31149342348518897782279760206406615040]