Lattice animals on a staircase and generalized Fibonacci numbers
Abstract
We study the statistics of column-convex lattice animals generated by the stacking of squares on a staircase with step height p. We calculate the number of animals with area k living on l stairs. The total number of animals with area k is given by the generalized Fibonacci number Fp(k). Exact results for the mean length and mean height of animals with area k are also obtained and we examine their asymptotic behaviour.
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