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A113842 as a simple table

na(n)
22
32
43
57
617
741
889
9193
10419
11859
121759
133607
147247
1514551
1628793
1756893
18111863
19218839
20426583
21827851
221603769
233097121
245966629
2511470489
2622004617
2742142883
2880570929
29153802489
30293176621
31558130051
321061238359
332015569583

[2,2,3,7,17,41,89,193,419,859,1759,3607,7247,
 14551,28793,56893,111863,218839,426583,827851,
 1603769,3097121,5966629,11470489,22004617,
 42142883,80570929,153802489,293176621,558130051,
 1061238359,2015569583]