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A376193 as a simple table

na(n)
12
25
311
423
547
689
7173
8353
9691
101367
112707
125393
1310753
1421481
1542899
1685733
17171131
18341743
19682819
201364761
212728163
225454181
2310906297
2421808483
2543611731
2687215483

[2,5,11,23,47,89,173,353,691,1367,2707,5393,10753,
 21481,42899,85733,171131,341743,682819,1364761,
 2728163,5454181,10906297,21808483,43611731,
 87215483]