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A166086 as a simple table

na(n)
01
11
23
31
45
51
617
71
85
91
1011
111
1213
131
145
155
1615
171
1829
191
2013
211
229
231
2432
255
2617
271
2815
291
3037
3111
325
3317
3415
351
3690
371
3817
391
4027
411
4229
439
4417
451
4637
471
4815
491
5039
5150
5219
531
5437
5513
5625
571
5825
591
60161
6119
625
631
6417
651
6653
671
6884
695
7041
711
7229
7311
745
751
7645
771
7862
793
8051
811
8219

[1,1,3,1,5,1,17,1,5,1,11,1,13,1,5,5,15,1,29,1,13,
 1,9,1,32,5,17,1,15,1,37,11,5,17,15,1,90,1,17,1,27,
 1,29,9,17,1,37,1,15,1,39,50,19,1,37,13,25,1,25,1,
 161,19,5,1,17,1,53,1,84,5,41,1,29,11,5,1,45,1,62,
 3,51,1,19]