Display Rules for Two-Dimensional Cellular Automata
Totalistic two-dimensional, five-neighbor code 20.
In[1]:=

RulePlot[CellularAutomaton[{20, {2, {{0, 1, 0}, {1, 1, 1}, {0, 1,
0}}}, {1, 1}}]]
Out[1]=

Totalistic two-dimensional, nine-neighbor code 111.
In[2]:=

RulePlot[CellularAutomaton[{111, {2, {{1, 1, 1}, {1, 1, 1}, {1, 1,
1}}}, {1, 1}}]]
Out[2]=

Totalistic two-dimensional cellular automaton with hexagonal neighbors.
In[3]:=

RulePlot[CellularAutomaton[{56, {2, {{1, 1, 0}, {1, 1, 1}, {0, 1,
1}}}, {1, 1}}], Appearance -> "Hexagons"]
Out[3]=

General two-dimensional cellular automaton.
In[4]:=

RulePlot[CellularAutomaton[{23571113171923, 2, {1, 1}}]]
Out[4]=
