# 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)
1009E - Intercity Travelling | 1637B - MEX and Array |
224A - Parallelepiped | 964A - Splits |
1615A - Closing The Gap | 4C - Registration System |
1321A - Contest for Robots | 1451A - Subtract or Divide |
1B - Spreadsheet | 1177A - Digits Sequence (Easy Edition) |
1579A - Casimir's String Solitaire | 287B - Pipeline |
510A - Fox And Snake | 1520B - Ordinary Numbers |
1624A - Plus One on the Subset | 350A - TL |
1487A - Arena | 1520D - Same Differences |
376A - Lever | 1305A - Kuroni and the Gifts |
1609A - Divide and Multiply | 149B - Martian Clock |
205A - Little Elephant and Rozdil | 1609B - William the Vigilant |
978B - File Name | 1426B - Symmetric Matrix |
732B - Cormen --- The Best Friend Of a Man | 1369A - FashionabLee |
1474B - Different Divisors | 1632B - Roof Construction |