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A253670 as a simple table

na(n)
01
11
21
31
43
51
61
75
85
91
101
117
1221
137
141
151
169
1743
1849
199
201
211
2211
2373
24229
2589
2611
271
281
2913
30111
31529
32685
33141
3413
351
361
3715
38157
391021
403393
411531
42205
4315
441
451
4617
47211
481753
498501
5012361
512887
52281
5317
541
551
5619
57273
582773
5918001
6063591
6132809
624873
63369
6419
651

[1,1,1,1,3,1,1,5,5,1,1,7,21,7,1,1,9,43,49,9,1,1,
 11,73,229,89,11,1,1,13,111,529,685,141,13,1,1,15,
 157,1021,3393,1531,205,15,1,1,17,211,1753,8501,
 12361,2887,281,17,1,1,19,273,2773,18001,63591,
 32809,4873,369,19,1]