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A037152 as a simple table

na(n)
13
25
311
429
5127
6727
75051
840343
9362897
103628811
1139916817
12479001629
136227020867
1487178291219
151307674368043
1620922789888023
17355687428096031
186402373705728037
19121645100408832089
202432902008176640029

[3,5,11,29,127,727,5051,40343,362897,3628811,
 39916817,479001629,6227020867,87178291219,
 1307674368043,20922789888023,355687428096031,
 6402373705728037,121645100408832089,
 2432902008176640029]