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A068066 as a simple table

na(n)
12
22
35
42
55
62
717
883
93
103
115
122
1329
142
153
1611
173
183
1911
2023
217
225
237
2411
255
263
277
283
2913
303
3113
325
337
3417
355
363
375
3873
3913
405
417
425
437
445
457
4629
477
4853
4911
5029
5117
5231
533
5423
553
5647
5797
585
5929
602
613
6237
6313
642
653
6617
6719
685
6919
7071
713
7247
735
7419
753
7659
7723
7889
797
8019
8111
8237
8353
843

[2,2,5,2,5,2,17,83,3,3,5,2,29,2,3,11,3,3,11,23,7,
 5,7,11,5,3,7,3,13,3,13,5,7,17,5,3,5,73,13,5,7,5,7,
 5,7,29,7,53,11,29,17,31,3,23,3,47,97,5,29,2,3,37,
 13,2,3,17,19,5,19,71,3,47,5,19,3,59,23,89,7,19,11,
 37,53,3]