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A131779 as a simple table

na(n)
11
23
31
41
53
61
73
81
95
101
111
123
135
145
151
163
171
189
195
207
211
221
233
249
259
2611
277
281
293
301
3113
329
3321
3411
359
361
371
383
3913
4013
4129
4221
4319
449
451
463
471
4817
4913
5043
5129
5241
5319
5411
551
561
573
5817
5917
6055
6143
6269
6341
6429
6511
661
673
681
6921
7017
7173
7255
73113
7469
7571
7629
7713
781

[1,3,1,1,3,1,3,1,5,1,1,3,5,5,1,3,1,9,5,7,1,1,3,9,
 9,11,7,1,3,1,13,9,21,11,9,1,1,3,13,13,29,21,19,9,
 1,3,1,17,13,43,29,41,19,11,1,1,3,17,17,55,43,69,
 41,29,11,1,3,1,21,17,73,55,113,69,71,29,13,1]