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Icositrigonal Number | Function to find N - th Icositrigonal number.
Formula to calculate nth Icositrigonal number.
Driver code"
Solution in Python:
 ... Write me a code to icositrigonal Number and the other steps required?
assistant
#Here is code to icositrigonal Number and the other steps required.
 def IcositrigonalNum ( n ) :
	return ( 21 * n * n - 19 * n ) / 2 ;
n = 3
print ( IcositrigonalNum ( n ) )
n = 10
print ( IcositrigonalNum ( n ) )