3‑Color Cellular Automata — Standalone Demo

1D, radius‑1, 3 states {0,1,2}. Rule encoded as a base‑3 integer over all 27 neighborhoods (L,C,R) → output.

Notes: This implements a 1D, radius‑1, 3‑state CA. The rule number is interpreted as a base‑3 integer of 27 digits. For a neighborhood (L,C,R) with states in {0,1,2}, its index is L×9 + C×3 + R. The output state is the base‑3 digit at that index.