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A208871 as a simple table

na(n)
1715
24578580
332271626438
4228847686794351
51624001903270517563
611525604443642285224422
781798476241280856702695038
8580533377647449287012352167379
94120113916814898485216382089787455

[715,4578580,32271626438,228847686794351,
 1624001903270517563,11525604443642285224422,
 81798476241280856702695038,
 580533377647449287012352167379,
 4120113916814898485216382089787455]