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A179283 as a simple table

na(n)
12
22
33
47
511
623
743
889
9173
10347
11683
121367
132731
145471
1510937
1621851
1743691
1887383
19174763
20349529
21699053
221398107
232796203
245592407
2511184829
2622369661
2744739259
2889478503
29178956983
30357913951
31715827883
321431655777
332863311551

[2,2,3,7,11,23,43,89,173,347,683,1367,2731,5471,
 10937,21851,43691,87383,174763,349529,699053,
 1398107,2796203,5592407,11184829,22369661,
 44739259,89478503,178956983,357913951,715827883,
 1431655777,2863311551]