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A103728 as a simple table

na(n)
11
20
31
4-1
51
61
7-3
85
9-3
101
111
12-5
1313
14-17
1513
16-5
171
181
19-9
2041
21-109
22191
23-229
24191
25-109
2641
27-9
281
291
30-11
3161
32-203
33457
34-731
35853
36-731
37457
38-203
3961
40-11
411
421
43-15
44113
45-527
461713
47-4111
487537
49-10767
5012113
51-10767
527537
53-4111
541713
55-527
56113
57-15
581
591
60-17
61145
62-773
632899
64-8117
6517587

[1,0,1,-1,1,1,-3,5,-3,1,1,-5,13,-17,13,-5,1,1,-9,
 41,-109,191,-229,191,-109,41,-9,1,1,-11,61,-203,
 457,-731,853,-731,457,-203,61,-11,1,1,-15,113,
 -527,1713,-4111,7537,-10767,12113,-10767,7537,
 -4111,1713,-527,113,-15,1,1,-17,145,-773,2899,
 -8117,17587]