#include <stdio.h> #include <string.h> #include <math.h> #include <stdlib.h> int main() { int test,cycles; int growth,i; scanf("%d",&test); while(test>0) { scanf("%d",&cycles); growth=0; for(i=0;i<=cycles;i++) { if(i%2==0) growth=growth+1; else growth=growth+growth; } test--; printf("%d\n",growth); } return 0; }