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A177930 as a simple table

na(n)
13
25
33
411
53
65
73
829
93
1059
113
127
135
143
157
16137
173
185
193
20281
213
225
233
24569
253
267
275
283
291151
303
315
323
332309
343
3531
364649
373
3817
393
407
415
423
437
445
453
469341
473
485
493
5011
513
5259
533
5429
553
5619
577
585
593
607
6119
625
633
647
65109
665
673
6861
697
7079
715
723
7313
745
753
7619139
773
78101
793
807
8113
8211
833
8471
853

[3,5,3,11,3,5,3,29,3,59,3,7,5,3,7,137,3,5,3,281,3,
 5,3,569,3,7,5,3,1151,3,5,3,2309,3,31,4649,3,17,3,
 7,5,3,7,5,3,9341,3,5,3,11,3,59,3,29,3,19,7,5,3,7,
 19,5,3,7,109,5,3,61,7,79,5,3,13,5,3,19139,3,101,3,
 7,13,11,3,71,3]