Icosikaienneagonal Number | Java implementation for above approach ; Function to Find the Nth icosikaienneagonal Number ; Driver Code
class GFG { static int icosikaienneagonalNum ( int n ) { return ( 27 * n * n - 25 * n ) / 2 ; } public static void main ( String args [ ] ) { int n = 3 ; System . out . print ( icosikaienneagonalNum ( n ) ) ; } }