Hmm, shouldn't this pattern be perfectly stable?

     o
    o o
     o

In this simulation it seems to oscillate between two patterns.

Very interesting visualization either way!

▲ qchamaeleon 2 days ago | parent | next [-]

I'm guessing you're looking at three cells switching between vertical and horizontal.

O O to OOO and back again. O

	▲	boomlinde 2 days ago \| parent [-]
		Aah, yes, that's probably it.

▲ JKCalhoun 2 days ago | parent | prev [-]