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A178154 as a simple table

na(n)
11
21
33
43
53
63
73
85
99
103
117
125
139
145
159
165
1715
189
197
203
2111
2215
2313
249
259
267
2715
2815
2921
3013
3111
329
339
3419
359
3615
3719
389
399
4017
4127
4221
4315
4415
457
4621
4725
487
4927
509
5121
5215
539
5427
5515
5621
5725
5813
5915
6013
619
6223
6333
6415
6515
6631
6713
6815
6921
7015
7115
7221
739
7421
7533
7621
7721
789
7929
809
8131
8219

[1,1,3,3,3,3,3,5,9,3,7,5,9,5,9,5,15,9,7,3,11,15,
 13,9,9,7,15,15,21,13,11,9,9,19,9,15,19,9,9,17,27,
 21,15,15,7,21,25,7,27,9,21,15,9,27,15,21,25,13,15,
 13,9,23,33,15,15,31,13,15,21,15,15,21,9,21,33,21,
 21,9,29,9,31,19]