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A281113 as a simple table

na(n)
21
31
43
51
63
71
86
93
103
111
129
131
143
153
1615
171
189
191
209
213
223
231
2423
253
263
276
289
291
3012
311
3228
333
343
353
3632
371
383
393
4023
411
4212
431
449
459
463
471
4858
493
509
513
529
531
5423
553
5623
573
583
591
6041
611
623
639
6466
653
6612
671
689
693
7012
711
7284
731
743
759
769
773
7812
791
8058
8115
823

[1,1,3,1,3,1,6,3,3,1,9,1,3,3,15,1,9,1,9,3,3,1,23,
 3,3,6,9,1,12,1,28,3,3,3,32,1,3,3,23,1,12,1,9,9,3,
 1,58,3,9,3,9,1,23,3,23,3,3,1,41,1,3,9,66,3,12,1,9,
 3,12,1,84,1,3,9,9,3,12,1,58,15,3]