Odd numbers are 1,3,5,7,9,….
Now we will see the sum of elements:
Sum of first 2 odd numbers: 1+3= 4= 22
Sum of first 3 odd numbers: 1+3+5= 9= 32
Sum of first 4 odd numbers: 1+3+5+7=16= 42
Sum of first 5 odd numbers: 1+3+5+7+9 = 25 = 52
Sum of first n odd numbers: 1+3+5+7+9+. . . . . n numbers= n2
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