0
Cubana1992 ∙
14
Wiki User
Chat with our AI personalities
16
2 ?
If En = 2n then E9 = 2*9 = 18
If n = 9 then 2n must be 18.
On = 2n - 1 so O13 = 2*13 - 1 = 26 - 1 = 25