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A125127 as a simple table

na(n)
11
21
31
41
53
61
71
83
94
101
111
123
137
147
151
161
173
187
1911
2011
211
221
233
247
2515
2621
2718
281
291
303
317
3215
3326
3439
3529
361
371
383
397
4015
4131
4251
4371
4447
451
461
473
487
4915
5031
5157
5299
53131
5476
551
561
573
587
5915
6031
6163
62113
63191
64241
65123
661

[1,1,1,1,3,1,1,3,4,1,1,3,7,7,1,1,3,7,11,11,1,1,3,
 7,15,21,18,1,1,3,7,15,26,39,29,1,1,3,7,15,31,51,
 71,47,1,1,3,7,15,31,57,99,131,76,1,1,3,7,15,31,63,
 113,191,241,123,1]