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A156861 as a simple table

na(n)
01
10
22
3-1
41
54
6-2
7-1
83
98
10-3
11-4
120
137
1416
15-4
16-8
17-6
183
1915
2032
21-5
22-13
23-16
24-7
2510
2631
2764
28-6
29-19
30-31
31-27
32-5
3325
3463
35128
36-7
37-26
38-52
39-62
40-40
414
4256
43127
44256
45-8
46-34
47-80
48-118
49-110
50-52
5128
52119
53255
54512
55-9
56-43
57-116
58-202
59-236
60-178
61-56
6283
63246
64511
651024

[1,0,2,-1,1,4,-2,-1,3,8,-3,-4,0,7,16,-4,-8,-6,3,
 15,32,-5,-13,-16,-7,10,31,64,-6,-19,-31,-27,-5,25,
 63,128,-7,-26,-52,-62,-40,4,56,127,256,-8,-34,-80,
 -118,-110,-52,28,119,255,512,-9,-43,-116,-202,
 -236,-178,-56,83,246,511,1024]