Rule 150 printed on a forest t-shirt

Rule 150

Single cell

$38.00

GarmentForest
InkMoss
SizeM
Rule150 · 10010110
Initial rowSingle live cell
Lattice161 × 161 cells, periodic
GarmentGildan 64000, 100% ring-spun cotton
PrintDTG front, ~250 dpi, transparent ground
MadeOn demand, printed after you order

Why this rule

The sum of all three neighbours, mod 2. Additive rules like this one are the reason cellular automata and linear algebra keep bumping into each other.