[離散] 遞迴規則

[mqazz1 (無法顯示)]

find a formula for a(n) satisfying the relation

a(n) = -2a(n-2) - a(n-4)

with a(0)=0, a(1)=1, a(2)=2, a(3)=3


請問應該怎麼推呢?

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