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A238339 as a simple table

na(n)
01
11
21
31
43
51
61
75
85
91
101
117
1213
137
141
151
169
1725
1829
199
201
211
2211
2341
2479
2561
2611
271
281
2913
3061
31169
32241
33125
3413
351
361
3715
3885
39311
40681
41727
42253
4315
441
451
4617
47113
48517
491561
502729
512185
52509
5317
541
551
5619
57145
58799
593109
607811
6110921
626559
631021
6419
651

[1,1,1,1,3,1,1,5,5,1,1,7,13,7,1,1,9,25,29,9,1,1,
 11,41,79,61,11,1,1,13,61,169,241,125,13,1,1,15,85,
 311,681,727,253,15,1,1,17,113,517,1561,2729,2185,
 509,17,1,1,19,145,799,3109,7811,10921,6559,1021,
 19,1]