2 4 8 32 256 ...n series in php
<title>1,2,2,4,8,32,256.....n</title>
<?php
/* 1,2,2,4,8,32,256.....n */
$a=1;
$b=2;
$c=0;
$l=0;
while($l<=5)
{
$c=$a*$b;
print"<br>".$c;
$a=$b;
$b=$c;
$l++;
}
?>
OUTPUT: 2 4 8 32 256
