2^n+1=26 find n

Never mind.  I read it wrong.  I think. 

Is that supposed to bb 2^(n+1) or (2^n) + 1   ??

2^n + 1 = 26

2^n =26 - 1

2^n =25

Take the log of both sides

n = log(25) / log(2)

n = ~ 4.643856......