I first wrote 2**$_/2, but that gives me 0.5 for $_ being 0. I didn't want to use int().
You can avoid the int() by making it implicit: 
$ perl -wle'print [0..256]->[2**$_/2] for 0..9'
0
1
2
4
8
16
32
64
128
256

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In reply to Re: Beautiful code I wrote ;-) by ysth
in thread Beautiful code I wrote ;-) by Skeeve

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