b(n)=2*b(n-6)+3*b(n-10)+b(n-8), b(0)=0, b(1)=0, b(2)=0, b(3)=1, b(4)=0, b(5)=0, b(6)=0, b(7)=0, b(8)=0, b(9)=2, b(10)=0

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