Question: Find but do not solve algebraically the recurrence relation for the number xnxn of perfect coverings of the shape 1n1n by monominos (single boxes) and

Find but do not solve algebraically the recurrence relation for the number xnxn of perfect coverings of the shape 1n1n by monominos (single boxes) and dominos such that no two monominos are consecutive. Find x1,...,x4x1,...,x4.

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