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A371497 as a simple table

na(n)
11
21
31
41
53
69
71
85
97
109
1119
121
133
144
151
162
174
188
191
203
215
229
2315
2417
2525
2627
2731
281
297
309
3111
3213
3315
3419
3525
3629
3741
3843
391
404
415
426
437
449
4513
461
473
485
499
5011
5115
5223
5325
5427
5533
5641
5743
5845
5949
6055
611
623
634
647
659
6610
6711
6812
6916
701
712
724
735
748
759
7610
7716
7818
7920
801
813
827
839
8413
8517

[1,1,1,1,3,9,1,5,7,9,19,1,3,4,1,2,4,8,1,3,5,9,15,
 17,25,27,31,1,7,9,11,13,15,19,25,29,41,43,1,4,5,6,
 7,9,13,1,3,5,9,11,15,23,25,27,33,41,43,45,49,55,1,
 3,4,7,9,10,11,12,16,1,2,4,5,8,9,10,16,18,20,1,3,7,
 9,13,17]