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A002091 as a simple table

na(n)
13
29
319
421
555
6115
7193
8323
9611
101081
111571
1210771
1313067
1416321
1544881
1657887
1793167
18189947
19404939
20442307
211746551
223383593
233544391
245056787
257480667
2625619213
2787170987
28404940757
29526805663
30707095391
311009465507
321048720723
335315914139

[3,9,19,21,55,115,193,323,611,1081,1571,10771,
 13067,16321,44881,57887,93167,189947,404939,
 442307,1746551,3383593,3544391,5056787,7480667,
 25619213,87170987,404940757,526805663,707095391,
 1009465507,1048720723,5315914139]