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A108048 as a simple table

na(n)
00
11
2209430786243
33907821040411155686
4614057559169335453819010
56767073673905716055915469215
613749422954239269326919955861621
78665930063459510313925842272832668

[0,1,209430786243,3907821040411155686,
 614057559169335453819010,
 6767073673905716055915469215,
 13749422954239269326919955861621,
 8665930063459510313925842272832668]