16 lines
273 B
C
16 lines
273 B
C
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#include <stdio.h>
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int main(void){
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int numbers;
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scanf("%d",&numbers);
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int count, i, station, all;
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for(count = 0; count < numbers; count++){
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scanf("%d",&station);
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all = 3;
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for(i = 0; i < station; i++)
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all = (all - 1) * 2;
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printf("%d\n",all);
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}
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return 0;
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}
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