Java Random Generator's seed producing different outputs

While trying to create a Coin object class using two specific seeds passed into the object upon creation, I have noticed that when passing in the seed to an int "seed", the seed variable produces a different variable than just inputting the specific number into the random number generator. Here's some code from the Coin class:

public int headCount;
public int tailCount;
public int seed;

public Coin( int n ){
    seed = n;
    headCount = 0;
    tailCount = 0;
}
public Random flipGenerator = new Random(seed); 

public String flip(){
    String heads = "H";
    String tails = "T";

    boolean nextFlip = flipGenerator.nextBoolean();
    if (nextFlip == true)
    {
        headCount++;
        return heads;
    }
    if (nextFlip == false)
    {
        tailCount++;
        return tails;
    }
    return null;
}

Here's from the file that creates and prints the Coin objects:

Coin coin1 = new Coin( 17 );
Coin coin2 = new Coin( 13 ); 

The code in that file prints out the outcome of the random flips 20 times using the 17 seed, 10 times with the 13 seed and finally 35 times with the 17 seed again. However the output is incorrect when using

public Random flipGenerator = new Random(seed); 

as opposed to

public Random flipGenerator = new Random(17);

or

public Random flipGenerator = new Random(13);  

Why is this happening?