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A167199 as a simple table

na(n)
01
1-2
27
3-36
4246
5-2100
621510
7-257040
83510360
9-53933040
10920694600
11-17288964000
12354169292400
13-7859862410400
14187846741882800
15-4810116703392000
16131382125482608000
17-3812816394747360000
18117159925012065936000
19-3800085546956707008000
20129743036125975752480000

[1,-2,7,-36,246,-2100,21510,-257040,3510360,
 -53933040,920694600,-17288964000,354169292400,
 -7859862410400,187846741882800,-4810116703392000,
 131382125482608000,-3812816394747360000,
 117159925012065936000,-3800085546956707008000,
 129743036125975752480000]