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A309076 as a simple table

na(n)
00
11
2-1
32
43
5-3
6-2
7-4
85
96
104
117
128
13-8
14-7
15-9
16-6
17-5
18-11
19-10
20-12
2113
2214
2312
2415
2516
2610
2711
289
2918
3019
3117
3220
3321
34-21
35-20
36-22
37-19
38-18
39-24
40-23
41-25
42-16
43-15
44-17
45-14
46-13
47-29
48-28
49-30
50-27
51-26
52-32
53-31
54-33

[0,1,-1,2,3,-3,-2,-4,5,6,4,7,8,-8,-7,-9,-6,-5,-11,
 -10,-12,13,14,12,15,16,10,11,9,18,19,17,20,21,-21,
 -20,-22,-19,-18,-24,-23,-25,-16,-15,-17,-14,-13,
 -29,-28,-30,-27,-26,-32,-31,-33]