l Sum of the first 18 Odd Numbers

Enter n:

Sum of the First
              

Calculate the sum of the following

The first 18 Odd Numbers

Σ n Odd Numbers formula:

S18 = n2

S18 = 182

S18 = 324

Average (A) of the first 18 Odd Numbers

A  =  Sum of the first 18 Odd Numbers
  Count

A  =  324
  18

Average (A) of the first 18 Odd Numbers = 18

Sum of the first 18 Odd Numbers

  n    On  
  1    1  
  2    3  
  3    5  
  4    7  
  5    9  
  6    11  
  7    13  
  8    15  
  9    17  
  10    19  
  11    21  
  12    23  
  13    25  
  14    27  
  15    29  
  16    31  
  17    33  
  18    35  

Final Answer


S18 = 324
Average (A) of the first 18 Odd Numbers = 18