Dim a(1 To 10) As Integer
Randomize
n = 0
i = 1: j = 10
Key = Int(Rnd * 25) * 2 + 1
Do While i <= j
m = Int((i + j) / 2)
If Key = a(m) Then Exit Do
If Key > a(m) Then
i = m + 1: n = n * 2 + 1
Else
j = m - 1: n = n * 2 - 1
End If
Loop
数组元素a(1)到a(10)的值依次为“5,8,11,18,23,29,33,42,45,51”。执行该程序段后,n的值不可能的是( )