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A046581 as a simple table

na(n)
11
21
31
41
51
61
71
81
91
101
111
121
131
145
155
161
171
181
191
209
215
222
239
241
251
261
271
2813
2919
3019
3113
321
331
341
351
3617
378
381
3919
402
418
421
4317
441
451
461
471
4821
4949
5035
512
5235
532
5449
5521
561
571
581
591
6025
6135
622
63119
6435
651
66119
6735
682
6925
701
711
721
731
7429

[1,1,1,1,1,1,1,1,1,1,1,1,1,5,5,1,1,1,1,9,5,2,9,1,
 1,1,1,13,19,19,13,1,1,1,1,17,8,1,19,2,8,1,17,1,1,
 1,1,21,49,35,2,35,2,49,21,1,1,1,1,25,35,2,119,35,
 1,119,35,2,25,1,1,1,1,29]