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A054678 as a simple table

na(n)
27
389
4199
5463
6463
7463
811593
911593
10183091
11241603
12241603
13241603
149177431
159177431
1612270077
17105639091
18297779117
19297779117
20727334879
211113443017
221113443017
231113443017
241113443017
2579263248027
2684676452781
27113391385603

[7,89,199,463,463,463,11593,11593,183091,241603,
 241603,241603,9177431,9177431,12270077,105639091,
 297779117,297779117,727334879,1113443017,
 1113443017,1113443017,1113443017,79263248027,
 84676452781,113391385603]