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A176124 as a simple table

na(n)
01
11
2-1
31
4-2
5-9
61
7-2
8-33
9-56
101
111
12-109
13-209
1450
151
1611
17-324
18-894
191641
2010485
211
2236
23-867
24-4262
2512951
2685926
27211435
281
2992
30-2085
31-20516
3274369
33625164
341435939
351005536
361
37211
38-4419
39-93989
40344617
414306671
429337441
43-7280909
44-94801266

[1,1,-1,1,-2,-9,1,-2,-33,-56,1,1,-109,-209,50,1,
 11,-324,-894,1641,10485,1,36,-867,-4262,12951,
 85926,211435,1,92,-2085,-20516,74369,625164,
 1435939,1005536,1,211,-4419,-93989,344617,4306671,
 9337441,-7280909,-94801266]