Icosikaiheptagonal Number | Java program to find N - th icosikaiheptagonal number ; Function to find the nth icosikaiheptagonal number ; Driver code
class GFG { static int icosikaiheptagonalNum ( int n ) { return ( 25 * n * n - 23 * n ) / 2 ; } public static void main ( String [ ] args ) { int n = 3 ; System . out . print ( "3rd ▁ icosikaiheptagonal ▁ Number ▁ is ▁ " + icosikaiheptagonalNum ( n ) ) ; } }