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A006794 as a simple table

na(n)
13
25
311
413
541
689
7317
8337
9991
101873
112053
122377
134093
144297
154583
166569
1713033
1815877
19843301
201098133
213267113

[3,5,11,13,41,89,317,337,991,1873,2053,2377,4093,
 4297,4583,6569,13033,15877,843301,1098133,3267113]