<p>How many positive four digit even integers have a 5 in the thousands place, a 2 in the tens place, and at least one of the digits equal to 6?</p>
<p>The answer is 14.</p>
<p>However, I seem to have found 15 numbers to work. Namely:</p>
<p>5620, 5622, 5624, 5626, 5628</p>
<p>5026, 5126, 5226, 5326, 5426, 5526, 5626, 5726, 5826, 5926 </p>
<p>What am I doing wrong?</p>