7

#include <iostream> //output first n members of sequence

using namespace std;

int main()
{
	int number;
	double preprev = 4; //previous member to previous member
	double prev = -4; //previous member
	double current;

	cout << "Enter the number of needed members = "; cin >> number;

	if (number == 1)
		cout << endl << prev;
	else
		if (number == 2)
			cout << endl << preprev << endl << prev;
		else
		{
			cout << endl << preprev << endl << prev;
			for (int index = 3; index <= number; index++)
			{
				double swapper = preprev;
				current = 1.0 / 5.0 * (2 * preprev + 3 * prev);
				cout << endl << current;
				preprev = prev;
				prev = current;

			}
		}

	cout << endl;
	system("pause");
	return 0;
}