

A224476


(2*16^(5^n) + (10^n)/2  1) mod 10^n: a sequence of trimorphic numbers ending (for n > 1) in 1.


4



6, 1, 251, 3751, 68751, 718751, 9218751, 24218751, 74218751, 8574218751, 13574218751, 663574218751, 5163574218751, 30163574218751, 980163574218751, 2480163574218751, 37480163574218751, 987480163574218751, 487480163574218751, 65487480163574218751
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