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A273216 as a simple table

na(n)
17
223
32
419
541
619
753
859
917
1037
1129
1283
1343
14137
1537
1613
17113
1829
1961
202
21131
22137
2353
24137
25149
2679
27167
28173
2911
30179
31137
32139
3347
3497
3519
36229
3753
38137
39109
4083
41173
42233
43239
44137
4531
46127
47257
48263
4919
50233
51139
52281
5371
54293

[7,23,2,19,41,19,53,59,17,37,29,83,43,137,37,13,
 113,29,61,2,131,137,53,137,149,79,167,173,11,179,
 137,139,47,97,19,229,53,137,109,83,173,233,239,
 137,31,127,257,263,19,233,139,281,71,293]