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Re:我来给个说明

Posted by lys_lys888 at 2008-03-24 20:39:27 on Problem 2663
In Reply To:我来给个说明 Posted by:zyz at 2007-07-03 20:35:32
a[n]=4*a[n-2]-a[n-4];
a[0]=1;
a[1]=0;

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