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A397072 as a simple table

na(n)
12
22
35
42
531
613
717
85
97
1043
1141
1213
132
1437
1523
162
172
18101
1947
207
2111
2217
235
24331
2531
267
2723
282
29349
3079
3167
32139
33271
342
35281
3631
3797
3837
39383
40239
41263
42127
43137
44157
4597
46593
4711
48167
49113
50389
51449
52307
53179
54617
55199
56349
57127
58127
59131
607
61397
62317
63179
64577
651487
66659
67307
6831
69379
7037

[2,2,5,2,31,13,17,5,7,43,41,13,2,37,23,2,2,101,47,
 7,11,17,5,331,31,7,23,2,349,79,67,139,271,2,281,
 31,97,37,383,239,263,127,137,157,97,593,11,167,
 113,389,449,307,179,617,199,349,127,127,131,7,397,
 317,179,577,1487,659,307,31,379,37]