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A263009 as a simple table

na(n)
11
23
31
41
51
63
75
81
91
1039
113
121
131
149
157
161
171
183
191
2027
2159
223
239
241
251
261
273
2815
295
301
31477
321
333
347
3511
361
371
382175
3917
409
417
423
43747
441
4541571
461
475
4819
49627
5013
511
521
539
545
55153

[1,3,1,1,1,3,5,1,1,39,3,1,1,9,7,1,1,3,1,27,59,3,9,
 1,1,1,3,15,5,1,477,1,3,7,11,1,1,2175,17,9,7,3,747,
 1,41571,1,5,19,627,13,1,1,9,5,153]