On: Rule 30 for cellular automata

[TheOtherHobbes]

It could be the exception that proves the rule:

http://atlas.wolfram.com/01/01/34/01_01_1_34.html

[indrax → TheOtherHobbes]

While a single black square yields a boring line, an alternating initial pattern should yield a checkerboard. So any image including a checkered floor should qualify.