create table by eban

read n
((n<2))&&echo 1&&exit
s=`printf %$[n-2]s`
o=1${s//?/1}1
z=1${s//?/0}1
echo "$o
${s//?/$z
}$o"

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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