Icosikaiheptagonal Number | C ++ program to find N - th icosikaiheptagonal number ; Function to find the nth icosikaiheptagonal Number ; Driver code
#include <bits/stdc++.h> NEW_LINE using namespace std ; int icosikaiheptagonalNum ( int n ) { return ( 25 * n * n - 23 * n ) / 2 ; } int main ( ) { int n = 3 ; cout << "3rd ▁ icosikaiheptagonal ▁ Number ▁ is ▁ " << icosikaiheptagonalNum ( n ) ; return 0 ; }