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A037012 as a simple table

na(n)
00
11
2-1
31
40
5-1
61
71
8-1
9-1
101
112
120
13-2
14-1
151
163
172
18-2
19-3
20-1
211
224
235
240
25-5
26-4
27-1
281
295
309
315
32-5
33-9
34-5
35-1
361
376
3814
3914
400
41-14
42-14
43-6
44-1
451
467
4720
4828
4914
50-14
51-28
52-20
53-7
54-1
551
568
5727
5848
5942
600
61-42
62-48
63-27
64-8
65-1
661
679
6835
6975
7090
7142
72-42
73-90

[0,1,-1,1,0,-1,1,1,-1,-1,1,2,0,-2,-1,1,3,2,-2,-3,
 -1,1,4,5,0,-5,-4,-1,1,5,9,5,-5,-9,-5,-1,1,6,14,14,
 0,-14,-14,-6,-1,1,7,20,28,14,-14,-28,-20,-7,-1,1,
 8,27,48,42,0,-42,-48,-27,-8,-1,1,9,35,75,90,42,
 -42,-90]