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# In the sequence An, A1=1，A2=2, and An+2=An+1+An+An-1+….+A2+A1. What is

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Re: In the sequence An, A1=1A2=2, and An+2=An+1+An+An-1+.+A2+A1. What is [#permalink]
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Re: In the sequence An, A1=1A2=2, and An+2=An+1+An+An-1+.+A2+A1. What is [#permalink]
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