Sum of all elements up to Nth row in a Pascal triangle | Function to find sum of all elements upto nth row . ; Initialize sum with 0 ; Loop to calculate power of 2 upto n and add them ; Driver code
def calculateSum ( n ) : NEW_LINE INDENT sum = 0 NEW_LINE for row in range ( n ) : NEW_LINE INDENT sum = sum + ( 1 << row ) NEW_LINE DEDENT return sum NEW_LINE DEDENT n = 10 NEW_LINE print ( " Sum ▁ of ▁ all ▁ elements : " , calculateSum ( n ) ) NEW_LINE