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A124925 as a simple table

na(n)
11
23
31
41
55
65
71
87
911
101
119
1219
131
1411
1529
161
1713
1841
191
2015
2155
221
2317
2471
251
2619
2789
281
2921
30109
311
3223
33131
341
3525
36155
371
3827
39181
401
4129
42209
431
4431
45239
461
4733
48271
491
5035
51305
521
5337
54341
551
5639
57379
581
5941
60419
611
6243
63461
641
6545
66505
671
6847
69551
701
7149
72599
731
7451
75649
761
7753

[1,3,1,1,5,5,1,7,11,1,9,19,1,11,29,1,13,41,1,15,
 55,1,17,71,1,19,89,1,21,109,1,23,131,1,25,155,1,
 27,181,1,29,209,1,31,239,1,33,271,1,35,305,1,37,
 341,1,39,379,1,41,419,1,43,461,1,45,505,1,47,551,
 1,49,599,1,51,649,1,53]