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A360325 as a simple table

na(n)
11
21
33
41
55
63
71
81
99
105
1111
123
131
141
1515
161
1717
189
191
205
213
2211
231
243
2525
261
2727
281
291
3015
3131
321
3333
3417
355
369
371
381
393
405
4141
423
431
4411
4545
461
471
483
491
5025
5151
521
531
5427
5555
561
573
581
5959
6015
611
6231
639
641
655
6633
6767
6817
693
705
711
729
731
741
7575
761
7711
783
791

[1,1,3,1,5,3,1,1,9,5,11,3,1,1,15,1,17,9,1,5,3,11,
 1,3,25,1,27,1,1,15,31,1,33,17,5,9,1,1,3,5,41,3,1,
 11,45,1,1,3,1,25,51,1,1,27,55,1,3,1,59,15,1,31,9,
 1,5,33,67,17,3,5,1,9,1,1,75,1,11,3,1]