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A353820 as a simple table

na(n)
11
20
3-2
48
5-16
696
7-832
89344
9-27648
10238080
11-4228608
1255812096
13-398991360
144930609152
15-98606039040
162440552022016
17-17762113880064
18235149341884416
19-7331825098948608
20170578782435409920
21-2009778629489197056
2238563016760590598144
23-1278044473427380666368

[1,0,-2,8,-16,96,-832,9344,-27648,238080,-4228608,
 55812096,-398991360,4930609152,-98606039040,
 2440552022016,-17762113880064,235149341884416,
 -7331825098948608,170578782435409920,
 -2009778629489197056,38563016760590598144,
 -1278044473427380666368]