众所周知 ,著名的斐波那契数列源于“兔子问题” ,下面问题是由“免子问题”改编而成 ,简称“新兔子问题” .问题 :已知一对兔子间月生一对小兔子 ,而一对兔子生下后第三月就开始生小兔子 ,假如一年内无死亡发生 ,问一对兔子一年内能繁殖成几对 ?将兔子对数按月排列 ,易得如下 As we all know, the famous Fibonacci sequence stems from the “rabbit problem.” The following problem is an adaptation of the “Tone-free issue”, referred to as the “new rabbit problem.” Question: A couple of rabbits are known to have a pair of rabbits. , and a pair of rabbits born three months after birth gave birth to rabbits, if no death occurred within a year, asked a pair of rabbits can breed into a few pairs within a year? The number of rabbits arranged by month, easy to get as follows