5, 13, 41, 185, 1111, 8149
ATQ, 3! + 2! = 5 3! + 4! = 13 4! + 5! = 41 5! + 6! = 185 6! + 7! = 1111 7! + 8! = 8145 Therefore, 8145 should come in place of 8149.
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