3 steps
wm6437wm6437
signature
13→43
rule
{{{1, 2, 3}} -> {{1, 1, 1}, {1, 1, 3}, {4, 1, 3}, {4, 4, 1}}}
{{{1, 2, 3}} -> {{1, 1, 1}, {1, 1, 3}, {4, 1, 3}, {4, 4, 1}}}
make editable copy
download notebook