Code to calculate possible combinations for a Master combination lock given the last number in the combination. This source is in PHP.
<table summary="Possible Master Lock Combinations"> <caption>Possible Combinations</caption> <?php $default_c3 = 0; $c3 = (int) isset($_GET["last_comb"])? $_GET["last_comb"] : $default_c3; if ($c3<0 || $c3>39) $c3 = $default_c3; for ($c2=($c3+2)%4; $c2<40; $c2+=4) { print "<tr>"; for ($c1=$c3%4; $c1<40; $c1+=4) { if ($c1-$c2==2 or $c1-$c2==6 or $c2-$c1==38 or $c2-$c1==34 or abs($c3-$c2)%36==2) echo "<td> </td>"; else echo "<td>$c1 - $c2 - $c3</td>"; } print "</tr>\r\n"; } ?> </table>





Can you make it so that I can run this program on your website? I don’t have php on my computer. This would be an excellent utility for they iPhone.
Sure. Try this: Master Lock Combination Recovery
What about for a combination lock with numbers from 0 to 49?