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A132693 as a simple table

na(n)
01
11
2-3
322
4-250
53810
6-72492
71649634
8-43626510
91313526375
10-44332221175
111657043432088
12-67929461003560
133029864359322346
14-146058681728370600
157566706624571096610
16-419220650458638848514
1724733868801871384287055
18-1548237182318766914543100

[1,1,-3,22,-250,3810,-72492,1649634,-43626510,
 1313526375,-44332221175,1657043432088,
 -67929461003560,3029864359322346,
 -146058681728370600,7566706624571096610,
 -419220650458638848514,24733868801871384287055,
 -1548237182318766914543100]