text: Icositetragonal Number | Function to find icositetragonal number ; Formula to calculate nth icositetragonal number ; Driver code
code: function Icositetragonal_num ( n ) { return ( 22 * n * n - 20 * n ) / 2 ; } let n = 3 ; document . write ( Icositetragonal_num ( n ) + " " ) ; n = 10 ; document . write ( Icositetragonal_num ( n ) ) ;