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A248267 as a simple table

na(n)
06
13
215
3321
4111450
5533909816159
6325998701518914099105001
71006914879088411198399682064005635831534437484321
81497711655729721286088828059704410216184274677681054392262396421340070136379357931802690267613686

[6,3,15,321,111450,533909816159,
 325998701518914099105001,
 1006914879088411198399682064005635831534437484321,
 14977116557297212860888280597044102161842746776810\
 54392262396421340070136379357931802690267613686]