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A181878 as a simple table

na(n)
01
11
21
3-2
41
54
6-4
71
81
9-6
1011
11-6
121
139
14-24
1522
16-8
171
181
19-12
2046
21-62
2237
23-10
241
2516
26-80
27148
28-128
2956
30-12
311
321
33-20
34130
35-314
36367
37-230
3879
39-14
401
4125
42-200
43610
44-920
45771
46-376
47106
48-16
491
501
51-30
52295
53-1106
542083
55-2232
561444
57-574
58137
59-18
601
6136
62-420
631897
64-4352
655776
66-4744
672486
68-832
69172
70-20
711
721
73-42
74581
75-3108
768518
77-13672
7813820
79-9142
804013
81-1158
82211
83-22
841

[1,1,1,-2,1,4,-4,1,1,-6,11,-6,1,9,-24,22,-8,1,1,
 -12,46,-62,37,-10,1,16,-80,148,-128,56,-12,1,1,
 -20,130,-314,367,-230,79,-14,1,25,-200,610,-920,
 771,-376,106,-16,1,1,-30,295,-1106,2083,-2232,
 1444,-574,137,-18,1,36,-420,1897,-4352,5776,-4744,
 2486,-832,172,-20,1,1,-42,581,-3108,8518,-13672,
 13820,-9142,4013,-1158,211,-22,1]