打表

早期题目都能打表真好（悲）

#include<stdio.h>
int main(){
    const int a[]={0,2,4,11,31,83,227,616,1674,4550,12367,33617,91380,248397,675214};
    short*_=new short;
    scanf("%d",_);
    printf("%d",*(a+*_));
    return 0;
}