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A103891 as a simple table

na(n)
12
22
35
45
511
67
719
831
927893
10223
11554797
1210333
1329
1461
1528652131
16293049347
177731517
181483
1973
20337809273983
2167
22440939
231321
2494099
2589
26107
27281
281908113757161297657
29479
3061
31167
323121
33177907
345039
3511519
36281
37612153149
38587
392753
4021491
412897
4297
43307

[2,2,5,5,11,7,19,31,27893,223,554797,10333,29,61,
 28652131,293049347,7731517,1483,73,337809273983,
 67,440939,1321,94099,89,107,281,
 1908113757161297657,479,61,167,3121,177907,5039,
 11519,281,612153149,587,2753,21491,2897,97,307]