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A162108 as a simple table

na(n)
12
23
315
4234
510706
61411450
7539124281
8607445721710
92067567866431155
1021511034198042208456

[2,3,15,234,10706,1411450,539124281,607445721710,
 2067567866431155,21511034198042208456]