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A228615 as a simple table

na(n)
11
2-1
3-1
4-1
50
60
7-1
81
91
101
11-1
120
130
140
15-1
16-1
171
181
191
20-1
212
228
23-18
24-9
25-1
264
270
280
290
300
310
320
330
340
350
36-4096
37-4096
3864
39-20
40-125
415
42-6
43-216
4424
45152
4654872
47-106742
4814045
49125
50-21125
51-274625
52-274625
5310985
54-16731
55-970299
561804275
571312200
58373248
59-691488
60-192080

[1,-1,-1,-1,0,0,-1,1,1,1,-1,0,0,0,-1,-1,1,1,1,-1,
 2,8,-18,-9,-1,4,0,0,0,0,0,0,0,0,0,-4096,-4096,64,
 -20,-125,5,-6,-216,24,152,54872,-106742,14045,125,
 -21125,-274625,-274625,10985,-16731,-970299,
 1804275,1312200,373248,-691488,-192080]