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A188816 as a simple table

na(n)
11
20
31
42
5-1
60
70
81
9-3
106
11-2
129
13-6
141
150
160
170
181
194
20-12
2112
22-3
23-44
2460
25-24
263
2764
28-48
2912
30-1
310
320
330
340
351
36-5
3720
38-30
3920
40-4
41155
42-300
43210
44-60
456
46-655
47780
48-330
4960
50-4
51625

[1,0,1,2,-1,0,0,1,-3,6,-2,9,-6,1,0,0,0,1,4,-12,12,
 -3,-44,60,-24,3,64,-48,12,-1,0,0,0,0,1,-5,20,-30,
 20,-4,155,-300,210,-60,6,-655,780,-330,60,-4,625]