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A289291 as a simple table

na(n)
01
1-12
2-108
3-1344
4-22044
5-409752
6-8201088
7-172293504
8-3746915388
9-83625518604
10-1904468689368
11-44079484775616
12-1033852665619200
13-24518163456010392
14-586936016770722048
15-14164129272396668544
16-344209494372831399036

[1,-12,-108,-1344,-22044,-409752,-8201088,
 -172293504,-3746915388,-83625518604,
 -1904468689368,-44079484775616,-1033852665619200,
 -24518163456010392,-586936016770722048,
 -14164129272396668544,-344209494372831399036]