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A193233 as a simple table

na(n)
11
2-3
32
40
51
6-12
763
8-190
9363
10-455
11370
12-180
1340
140
151
16-39
17732
18-8806
1976293
20-507084
212689452
22-11689056
2342424338
24-130362394
25342624075
26-776022242
271522861581
28-2598606825
293863562996
30-5007519752
315652058863
32-5541107684
334697231261

[1,-3,2,0,1,-12,63,-190,363,-455,370,-180,40,0,1,
 -39,732,-8806,76293,-507084,2689452,-11689056,
 42424338,-130362394,342624075,-776022242,
 1522861581,-2598606825,3863562996,-5007519752,
 5652058863,-5541107684,4697231261]