卡特兰数小结
卡特兰数
卡特兰数通项公式:
![](https://gss2.bdstatic.com/9fo3dSag_xI4khGkpoWK1HF6hhy/baike/s%3D256/sign=2300064332dbb6fd215be2233f25aba6/1f178a82b9014a9084d9f405a2773912b21beea7.jpg)
![](https://gss1.bdstatic.com/9vo3dSag_xI4khGkpoWK1HF6hhy/baike/s%3D486/sign=ec0cb6f74d10b912bbc1f7f6f5fcfcb5/ac4bd11373f082027bb2607341fbfbedab641b5d.jpg)
h(n)= h(0)*h(n-1)+h(1)*h(n-2) + ... + h(n-1)*h(0) (n>=2)
h(n)=h(n-1)*((4*n-2)/(n+1));
h(n)=C(2n,n)/(n+1)
加油加油加油!!! fighting fighting fighting !!!
卡特兰数通项公式:
h(n)=h(n-1)*((4*n-2)/(n+1));
h(n)=C(2n,n)/(n+1)
加油加油加油!!! fighting fighting fighting !!!