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A154962 as a simple table

na(n)
01
11
21
31
4-2
5-5
6-6
73
810
990
10-5
11-13
12-14
135
1430
15510
16-10
17-21
18-22
197
2060
212100
22-14
23-29
24-30

[1,1,1,1,-2,-5,-6,3,10,90,-5,-13,-14,5,30,510,-10,
 -21,-22,7,60,2100,-14,-29,-30]