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A305320 as a simple table

na(n)
01
1-1
20
3-1
40
51
6-1
71
8-1
92
101
110
12-3
130
140
152
161
17-2
180
191
202
21-1
22-3
23-4
240
253
264
270
28-4
29-1
306
31-3
323
33-9
340
355
3610
370
38-6
39-7
400
416
42-2
432
44-9
456
467
474
48-7
49-7
50-11
518
5211
533
54-5
55-1
56-3
579
58-10
591
60-9
610
6216
638
640
65-4
66-4
67-20
6812
69-8
7011
710
72-7
7314
74-2

[1,-1,0,-1,0,1,-1,1,-1,2,1,0,-3,0,0,2,1,-2,0,1,2,
 -1,-3,-4,0,3,4,0,-4,-1,6,-3,3,-9,0,5,10,0,-6,-7,0,
 6,-2,2,-9,6,7,4,-7,-7,-11,8,11,3,-5,-1,-3,9,-10,1,
 -9,0,16,8,0,-4,-4,-20,12,-8,11,0,-7,14,-2]