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A176155 as a simple table

na(n)
01
11
21
31
4-1
51
61
7-8
8-8
91
101
11-23
1267
13-23
141
151
16-49
17181
18181
19-49
201
211
22-89
231906
24-6704
251906
26-89
271
281
29-146
30-1511
319808
329808
33-1511
34-146
351
361
37-223
3849113
39-426551
40782671
41-426551
4249113
43-223
441
451
46-323
47-343547
483220453
49-3873389
50-3873389
513220453
52-343547
53-323
541

[1,1,1,1,-1,1,1,-8,-8,1,1,-23,67,-23,1,1,-49,181,
 181,-49,1,1,-89,1906,-6704,1906,-89,1,1,-146,
 -1511,9808,9808,-1511,-146,1,1,-223,49113,-426551,
 782671,-426551,49113,-223,1,1,-323,-343547,
 3220453,-3873389,-3873389,3220453,-343547,-323,1]