Rule 030
Single cell
$38.00
GarmentBlack
InkBone
SizeM
Rule30 · 00011110
Initial rowSingle live cell
Lattice141 × 141 cells, periodic
GarmentGildan 64000, 100% ring-spun cotton
PrintDTG front, ~250 dpi, transparent ground
MadeOn demand, printed after you order
Why this rule
Three cells of deterministic arithmetic that nobody can shortcut. Wolfram liked it enough to use it as Mathematica's random number generator, and Cambridge North station wears it across the whole building.