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A174731 as a simple table

na(n)
11
21
31
41
5-13
61
71
8-74
9-74
101
111
12-278
13-588
14-278
151
161
17-881
18-3086
19-3086
20-881
211
221
23-2539
24-13207
25-22097
26-13207
27-2539
281
291
30-6884
31-49724
32-124694
33-124694
34-49724
35-6884
361
371
38-17884
39-171184
40-600424
41-900892
42-600424
43-171184
44-17884
451

[1,1,1,1,-13,1,1,-74,-74,1,1,-278,-588,-278,1,1,
 -881,-3086,-3086,-881,1,1,-2539,-13207,-22097,
 -13207,-2539,1,1,-6884,-49724,-124694,-124694,
 -49724,-6884,1,1,-17884,-171184,-600424,-900892,
 -600424,-171184,-17884,1]