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A013210 as a simple table

na(n)
00
10
2-1
33
4-6
523
6-105
7406
8-1260
91385
1055755
11-1232594
1220220354
13-312914383
144892322435
15-78950848976
161325556752520
17-23243942565943
18426334224758967
19-8180116120702106
20164087156833319710
21-3437833525919834035
2275145008886144335831

[0,0,-1,3,-6,23,-105,406,-1260,1385,55755,
 -1232594,20220354,-312914383,4892322435,
 -78950848976,1325556752520,-23243942565943,
 426334224758967,-8180116120702106,
 164087156833319710,-3437833525919834035,
 75145008886144335831]