Answer:
 the rational number with denominator r < VN interval 165 256 16 is 256/1683.
Explanation:
To find the rational number with denominator r < VN interval 165 256 16, we can perform the following steps:
1. Calculate the continued fraction expansion of the measured value y = 165:
 165 = 0 + 1/(6 + 1/(1 + 1/(1 + 1/13)))
2. Write down the continued fraction expansion:
 165 = [0; 6, 1, 1, 1, 13]
3. Determine the convergents of the continued fraction:
 The convergents of the continued fraction [0; 6, 1, 1, 1, 13] are:
 - Convergent 1: 0/1
 - Convergent 2: 1/6
 - Convergent 3: 1/7
 - Convergent 4: 2/13
 - Convergent 5: 15/98
 - Convergent 6: 197/1291
 - Convergent 7: 256/1683
4. Check if any of the convergents have a denominator less than the VN interval [165, 256, 16]:
 Among the convergents, the denominator of the rational number 256/1683 falls within the VN interval.
5. Write down the denominator of the rational number:
 The denominator of the rational number is 1683.
Therefore, the rational number with denominator r < VN interval 165 256 16 is 256/1683.