Driver Code
int main ( ) { long int n = 2 ; cout << n << " th ▁ centered ▁ hexadecagonal ▁ number ▁ : ▁ " << center_hexadecagonal_num ( n ) ; cout << endl ; n = 12 ; cout << n << " th ▁ centered ▁ hexadecagonal ▁ numbe ▁ : ▁ " << center_hexadecagonal_num ( n ) ; return 0 ; }