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A013486 as a simple table

na(n)
0-4
160
2-1384
350520
4-1963564
5-2440620
624774209456
7-7410634833360
81946918835205676
9-504022869697607700
10125734569960701153096
11-25506896972028634763640
12-308739978510619283180284

[-4,60,-1384,50520,-1963564,-2440620,24774209456,
 -7410634833360,1946918835205676,
 -504022869697607700,125734569960701153096,
 -25506896972028634763640,
 -308739978510619283180284]