Had to: 
perl -e '$n=pop; print "\n", " "x($n-$_),1..$_,reverse 1..$_-1, for 1.
+.$n,reverse 1..$n-1'  9

[download]
for 5.8 ish ... seems like there's a marvelous recursive solution but my brain is too small to find it.

a

In reply to Re^2: Diamonds for fun by a
in thread Diamonds for fun by perl_nando

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