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A307602 as a simple table

na(n)
01
11
20
32
4-1
54
6-2
75
8-1
94
103
11-2
1216
13-21
1447
15-62
16104
17-131
18191
19-229
20304
21-344
22420
23-437
24477
25-413
26336
27-76
28-270
29927
30-1792
313155
32-4904
337402
34-10519
3514694
36-19761
3726226
38-33847
3943162
40-53776
4166178
42-79679
4394562
44-109606
45124618
46-137468
47147061

[1,1,0,2,-1,4,-2,5,-1,4,3,-2,16,-21,47,-62,104,
 -131,191,-229,304,-344,420,-437,477,-413,336,-76,
 -270,927,-1792,3155,-4904,7402,-10519,14694,
 -19761,26226,-33847,43162,-53776,66178,-79679,
 94562,-109606,124618,-137468,147061]