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A238692 as a simple table

na(n)
10
21
37
4139
5365641
639916801
71317933016441
8355688356705921
953128667010491295649
1010888872347627347035630931201
118841761993746245283777145088001
1210333147966386144929666651337523200000001

[0,1,7,139,365641,39916801,1317933016441,
 355688356705921,53128667010491295649,
 10888872347627347035630931201,
 8841761993746245283777145088001,
 10333147966386144929666651337523200000001]