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A069405 as a simple table

na(n)
115
2285
34541
466579
5944157
613182673
7182702967
82522968803
934777826197
10478971480223
116593672923115
1290751017499077
131248904863846397
1417186379018703213
15236498372271010941
163254365880309197587
1744781833050605593997
18616220311429717310963

[15,285,4541,66579,944157,13182673,182702967,
 2522968803,34777826197,478971480223,6593672923115,
 90751017499077,1248904863846397,17186379018703213,
 236498372271010941,3254365880309197587,
 44781833050605593997,616220311429717310963]