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A172668 as a simple table

na(n)
11
2141
3352128
46152037276
5467046072593100
6115428185943399529200
776497104228450459248094400
8118274738663434470504494036529600
9384184227197088213207839624049360408000
102415977451999318332950627138384873223959560000

[1,141,352128,6152037276,467046072593100,
 115428185943399529200,76497104228450459248094400,
 118274738663434470504494036529600,
 384184227197088213207839624049360408000,
 2415977451999318332950627138384873223959560000]