Self-replicating code? Not exactly. 
print map{$i=$_/
20;$/,map {$r=$;
=$_/20;$   z=$i;
$n=$z*$     z,$z
=2*$r *     $z+$
i,$r= (      $m=
$           r*$r
)-$n+ $     ;for
a..z; $     m<4?
$":"+"}-    46..
13}-20..19 #GEB?

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In reply to Mandelbrot (Golf) Obfuscation by tadman

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