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A338657 as a simple table

na(n)
11
21
32
41
54
6-3
76
8-2
9-1
10-10
1110
12-22
1312
14-21
15-40
16-20
1716
18-55
1918
20-80
21-98
22-55
2322
24-90
25-101
26-78
27-138
28-182
2928
30-271
3130
32-104
33-330
34-136
35-756
36-37
3736
38-171
39-520
40-676
4140
42-476
4342
44-550
45-1786
46-253
4746
48648
49-1667
50-1276
51-1088
52-832
5352
541539
55-4312

[1,1,2,1,4,-3,6,-2,-1,-10,10,-22,12,-21,-40,-20,
 16,-55,18,-80,-98,-55,22,-90,-101,-78,-138,-182,
 28,-271,30,-104,-330,-136,-756,-37,36,-171,-520,
 -676,40,-476,42,-550,-1786,-253,46,648,-1667,
 -1276,-1088,-832,52,1539,-4312]