Woody8573 Woody8573
  • 25-11-2022
  • Computers and Technology
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Read Example 4 on p.532 of the textbook. Show work, and be sure to answer all parts of this question. (a) In this example
a n
​
represents the number of valid
n
-digit codewords. How is a valid codeword defined for this example? (b) What is the recurrence relation for
a n
​
? (c) Given
a 1 =9
, find
a 2
​
and
a 3
​

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