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A346091 as a simple table

na(n)
12
23
35
43
57
65
711
815
935
107
1113
125
1317
1411
157
1615
1719
1835
1923
207
2111
2213
2329
2435
2577
2617
2755
2811
2931
3077
3137
3221
3313
3419
35143
3635
3741
3823
3917
4077
4143
42143
4347
4413
4577
4629
4753
4835
492431
5077
5119
5217
5359
5455
55221
5611
5723
5831
5961
6077
6167
6237
63143
6421
65323
6613
6771
6819
6929
70143
7173
72385
7379
7441
751001
7623
77221
7817
7983
8077
81385

[2,3,5,3,7,5,11,15,35,7,13,5,17,11,7,15,19,35,23,
 7,11,13,29,35,77,17,55,11,31,77,37,21,13,19,143,
 35,41,23,17,77,43,143,47,13,77,29,53,35,2431,77,
 19,17,59,55,221,11,23,31,61,77,67,37,143,21,323,
 13,71,19,29,143,73,385,79,41,1001,23,221,17,83,77,
 385]