# Write your code here
t = int(input())
for i in range(t):
x = int(input())
sum=2
for j in range(1, (x//2)+1):
sum+=6+(j-1)*4
print(sum)1029A - Many Equal Substrings | 1675D - Vertical Paths |
1271C - Shawarma Tent | 805A - Fake NP |
1163A - Eating Soup | 787A - The Monster |
807A - Is it rated | 1096A - Find Divisible |
1430C - Numbers on Whiteboard | 1697B - Promo |
208D - Prizes Prizes more Prizes | 659A - Round House |
1492C - Maximum width | 171B - Star |
1512B - Almost Rectangle | 831B - Keyboard Layouts |
814A - An abandoned sentiment from past | 268C - Beautiful Sets of Points |
1391C - Cyclic Permutations | 11A - Increasing Sequence |
1406A - Subset Mex | 1365F - Swaps Again |
50B - Choosing Symbol Pairs | 1719A - Chip Game |
454B - Little Pony and Sort by Shift | 1152A - Neko Finds Grapes |
1719B - Mathematical Circus | 1719C - Fighting Tournament |
1642A - Hard Way | 285C - Building Permutation |