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A253645 as a simple table

na(n)
12
23
35
413
517
623
731
8137
9233
10337
11383
12719
13971
141291
151663
161777
173623
186113
1912589
2015733
2115791
2217729
2322637
2444623
2548989
2661379
2765777
2872379
2982129
3091331
3199559
32132859
33133733
34163633
35226129
36239539
37346391
38352133
39394223
40415379
41428531
42485113
43518233
44546523

[2,3,5,13,17,23,31,137,233,337,383,719,971,1291,
 1663,1777,3623,6113,12589,15733,15791,17729,22637,
 44623,48989,61379,65777,72379,82129,91331,99559,
 132859,133733,163633,226129,239539,346391,352133,
 394223,415379,428531,485113,518233,546523]