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A138533 as a simple table

na(n)
11
22
31
46
53
61
724
812
94
101
116
12120
1360
1420
155
161
1730
1810
19720
20360
21120
2230
236
241
25180
2660
2715
2820
2990

[1,2,1,6,3,1,24,12,4,1,6,120,60,20,5,1,30,10,720,
 360,120,30,6,1,180,60,15,20,90]