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A263926 as a simple table

na(n)
11
23
37
49
511
641
7109
8151
9647
101057
111223
122041
135401
145563
155599
1617581
1729567
1839839
19325909
20512497
21675193
221051751
231102733
241365367
252490503
264528957
279836371
2822265827
2978610297
3090386677
31111107047
32209565853

[1,3,7,9,11,41,109,151,647,1057,1223,2041,5401,
 5563,5599,17581,29567,39839,325909,512497,675193,
 1051751,1102733,1365367,2490503,4528957,9836371,
 22265827,78610297,90386677,111107047,209565853]