Why won't this factorial program work?

[Kieth89]

The program is supposed to calculate factorials, but for some reason it doesn't output the right things and I can't figure out why.

#include "stdafx.h"
#include <iostream>
const int ArSize = 16;	// example of external declaration
int main() 
{
	using std::cout;
	double factorials[ArSize];
	factorials[1] = factorials[0] = 1.0;
	int i;
	cout << factorials[1];
	for (int i = 2; i < ArSize; i++)
		factorials[1] = i * factorials[i-1];
	for (i = 0; i < ArSize; i++)
		cout << i << "! = " << factorials[i]<< std::endl;
	return 0;
}

I'm sure the answer is staring me straight in the face, and I'm just too wrapped up in what I think is the mistake to see the real mistake. That is usually how this happens. :) I just got introduced to the for loops in this book (C++ Primer Plus 5th ed.) and am still learning about them.

[wolfgang]

factorials[1] = i * factorials[i-1];Umm. Is it this line? Change the 1 to i?

[Kieth89]

Well whadda know. Told you, it's always something simple. :) Thanks for the help.