LK K.

# Fibonacci Sequences Question

two new male/female pairs of rabbits at the age of 1 month and six new male/female pairs of rabbits at the age of 2 months and every month afterward. Assume that there is only one male/female pair of rabbits at the beginning of a year. Further assume that no rabbits die in the farm. Let a(n) be the number of male/female pair of rabbits in the farm at the end of month n.
find recurrence relation
I got this one -> a(n)=a(n-1)+6a(n-3)+2[a(n-2) - a(n-3) ]
simplify          -> a(n)=a(n-1)+2a(n-2)+4a(n-3)
how to turn above relation to a(n)=a(n-1)+?*a(n-2)

Mark M.

Well, it is sorta like the Fibonacci sequence, yet it is not the Fibonacci sequence.
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12/05/17

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LK K.

I have tried different way but I still can't find the relation of  (n - 3) between (n - 1) and (n - 2)
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12/05/17

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