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A157528 as a simple table

na(n)
01
11
21
31
42
51
61
74
84
91
101
116
128
136
141
151
168
1712
1812
198
201
211
2210
2316
2418
2516
2610
271
281
2912
3020
3124
3224
3320
3412
351
361
3714
3824
3930
4032
4130
4224
4314
441
451
4616
4728
4836
4940
5040
5136
5228
5316
541
551
5618
5732
5842
5948
6050
6148
6242
6332
6418
651

[1,1,1,1,2,1,1,4,4,1,1,6,8,6,1,1,8,12,12,8,1,1,10,
 16,18,16,10,1,1,12,20,24,24,20,12,1,1,14,24,30,32,
 30,24,14,1,1,16,28,36,40,40,36,28,16,1,1,18,32,42,
 48,50,48,42,32,18,1]