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A207544 as a simple table

na(n)
13
281
314974
418584111
5151596413811
68153351029428092
72876868686935789680075
86662940552094334528016043729
9101291421007307048419298014635301970

[3,81,14974,18584111,151596413811,
 8153351029428092,2876868686935789680075,
 6662940552094334528016043729,
 101291421007307048419298014635301970]