With the use of while loop #C language

Given the series {1,2,6,22,86,342......} If 1 is the first element in the series, create a program that will identify the 29th element in the series. Store the 29th element in a variable. Use a function aside from main function that returns a value. See attached table in the instructions for additional requirement. Given the series {1,2,6,22,86,342.... ...}. If 1 is the first element in the series, create a program that will identify the 29th element in the series. Store the 29th element in a variable. Use a function aside from main function that returns a value. See attached table in the instructions for additional requirement