Mathematics, 28.06.2019 22:20 s732609

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 an.

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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...

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