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A228131 as a simple table

na(n)
10
21
3-1
44
50
66
7-7
80
927
106
11-11
12-8
130
1420
15-30
1664
170
18-4
19-19
200
210
2246
23-69
24-48
25250
26106
27-9
280
290
3068
31-93
320
330
3444
35-70
36216
370
3882
39-156
400
410
4260
43-43
44-88
450
46148
47-235
48-32
491029
5094
51-102
520
530
546
55-220
56-224
570
58-82
59-177
600
610
62168
63-126
641024
650
66304
67-67
680
690
70268
71-497
720
730
74494
75-50
76-152
770
78276
79-395
800
812187
824
83-249
840
850
86310
87-522
88-176
890
90388
91-182
920
930
94424
95-760
96-192
970
98202
990
1002000

[0,1,-1,4,0,6,-7,0,27,6,-11,-8,0,20,-30,64,0,-4,
 -19,0,0,46,-69,-48,250,106,-9,0,0,68,-93,0,0,44,
 -70,216,0,82,-156,0,0,60,-43,-88,0,148,-235,-32,
 1029,94,-102,0,0,6,-220,-224,0,-82,-177,0,0,168,
 -126,1024,0,304,-67,0,0,268,-497,0,0,494,-50,-152,
 0,276,-395,0,2187,4,-249,0,0,310,-522,-176,0,388,
 -182,0,0,424,-760,-192,0,202,0,2000]