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A134265 as a simple table

na(n)
11
21
3-1
41
5-2
61
71
82
9-1
10-2
111
121
13-2
14-7
156
1620
176
18-7
19-2
201
211
222
23-25
24-10
25225
26-184
27-498
28500
29610
30-500
31-498
32184
33225
3410
35-25
36-2
371

[1,1,-1,1,-2,1,1,2,-1,-2,1,1,-2,-7,6,20,6,-7,-2,1,
 1,2,-25,-10,225,-184,-498,500,610,-500,-498,184,
 225,10,-25,-2,1]