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A072209 as a simple table

na(n)
11
21
31
41
52
61
72
82
92
104
114
122
138
142
156
164
1710
188
194
206
2112
228
238
2412
256
2616
2712
2810
2922
3012
318
3224
336
3412
3528
3616
378
3820
3924
4024
4112
4224
4318
4416
4540
4612
4740
4822
4932
5012
5140
5232
5324
5452
5536
5648
5728
5840
5916
6040
6136
6248
6320
6464
6544
6624
6724
6872
6940
7048
7124
7218
7354

[1,1,1,1,2,1,2,2,2,4,4,2,8,2,6,4,10,8,4,6,12,8,8,
 12,6,16,12,10,22,12,8,24,6,12,28,16,8,20,24,24,12,
 24,18,16,40,12,40,22,32,12,40,32,24,52,36,48,28,
 40,16,40,36,48,20,64,44,24,24,72,40,48,24,18,54]