Question: Consider strings in { 0 , 1 , 2 } . Let an be the number of strings in { 0 , 1 , 2

Consider strings in {0,1,2}. Let an be the number of strings in {0,1,2} of length n that do not contain the substring 01 and neither 02. Compute a1, a2, a3 and a recurrence relation for an for all n >=4.(You do not need to solve this recurrence relation.)

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