Mathematics, 22.11.2019 06:31, Sariyahgaskin

Let an equal the number of ternary strings of length n made up of os, .ls, and 2s, such that the substrings 00, 01, 10, and 11 never occur. prove that an = an-l + 2an-2, (n 2: 2), with ao = 1 and al =3. then find a formula for

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Let an equal the number of ternary strings of length n made up of os, .ls, and 2s, such that the sub...