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A029796 as a simple table

na(n)
10
21
31000
41000000
51000000000
61000000000000
71000000000000000
81246600760666624
91315559990715517
102325413183184125
112663883812634624
124050549951695416
134544600014144000

[0,1,1000,1000000,1000000000,1000000000000,
 1000000000000000,1246600760666624,
 1315559990715517,2325413183184125,
 2663883812634624,4050549951695416,
 4544600014144000]