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A374294 as a simple table

na(n)
11
23
39
427
581
699
7729
8297
91089
10891
1159049
121683
13531441
148019
159801
165049
1743046721
1818513
19387420489
2015147
2188209
22649539
2331381059609
2431977
251185921
265845851
27314721
28136323
2922876792454961
30166617
31205891132094649
3295931
337144929
34473513931
3510673289
36351747
37150094635296999121

[1,3,9,27,81,99,729,297,1089,891,59049,1683,
 531441,8019,9801,5049,43046721,18513,387420489,
 15147,88209,649539,31381059609,31977,1185921,
 5845851,314721,136323,22876792454961,166617,
 205891132094649,95931,7144929,473513931,10673289,
 351747,150094635296999121]