# 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)
492A - Vanya and Cubes | 217A - Ice Skating |
270A - Fancy Fence | 181A - Series of Crimes |
1638A - Reverse | 1654C - Alice and the Cake |
369A - Valera and Plates | 1626A - Equidistant Letters |
977D - Divide by three multiply by two | 1654B - Prefix Removals |
1654A - Maximum Cake Tastiness | 1649A - Game |
139A - Petr and Book | 1612A - Distance |
520A - Pangram | 124A - The number of positions |
1041A - Heist | 901A - Hashing Trees |
1283A - Minutes Before the New Year | 1654D - Potion Brewing Class |
1107B - Digital root | 25A - IQ test |
785A - Anton and Polyhedrons | 1542B - Plus and Multiply |
306A - Candies | 1651C - Fault-tolerant Network |
870A - Search for Pretty Integers | 1174A - Ehab Fails to Be Thanos |
1169A - Circle Metro | 780C - Andryusha and Colored Balloons |