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A002472 as a simple table

na(n)
11
21
31
42
53
61
75
84
93
103
119
122
1311
145
153
168
1715
183
1917
206
215
229
2321
244
2515
2611
279
2810
2927
303
3129
3216
339
3415
3515
366
3735
3817
3911
4012
4139
425
4341
4418
459
4621
4745
488
4935
5015
5115
5222
5351
549
5527
5620
5717
5827
5957
606
6159
6229
6315
6432
6533
669
6765
6830
6921
7015
7169
7212
7371
7435
7515
7634
7745
7811
7977
8024
8127

[1,1,1,2,3,1,5,4,3,3,9,2,11,5,3,8,15,3,17,6,5,9,
 21,4,15,11,9,10,27,3,29,16,9,15,15,6,35,17,11,12,
 39,5,41,18,9,21,45,8,35,15,15,22,51,9,27,20,17,27,
 57,6,59,29,15,32,33,9,65,30,21,15,69,12,71,35,15,
 34,45,11,77,24,27]