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A070309 as a simple table

na(n)
11
21
33
42
51
63
71
87
95
107
112
121
137
144
151
168
173
183
1915
201
2111
221
232
2415
2511
263
272
281
2915
306
319
327
3317
344
357
362
371
3815
391
408
4131
423
437
443
4523
461
474
483
4911
5031
5126
521
5323
541
557
5611
573
582
591
6031
6113
622
6339
643
6515
662
671
6835
6919
702
7115
7211
737
748
751
7631
7710
781
793
8024
8135
8263
832
843
857
861
878
8831
893

[1,1,3,2,1,3,1,7,5,7,2,1,7,4,1,8,3,3,15,1,11,1,2,
 15,11,3,2,1,15,6,9,7,17,4,7,2,1,15,1,8,31,3,7,3,
 23,1,4,3,11,31,26,1,23,1,7,11,3,2,1,31,13,2,39,3,
 15,2,1,35,19,2,15,11,7,8,1,31,10,1,3,24,35,63,2,3,
 7,1,8,31,3]