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A292409 as a simple table

na(n)
21
34
483
54848
6562713
794810999
821577786374
96367912802891
102366319275431001
111081610451348718567
12596588083450068950934
13390803766837390136477505

[1,4,83,4848,562713,94810999,21577786374,
 6367912802891,2366319275431001,
 1081610451348718567,596588083450068950934,
 390803766837390136477505]