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A374413
Second center column of elementary triangular automaton rule 210, from a lone 1 cell.
3
0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0
OFFSET
0
COMMENTS
An Elementary Triangular Automaton (ETA) is a cellular automaton in the triangular grid where cells hold binary states and rules are local to the first neighborhood. There are 256 possible ETA rules.
Rule 210 (11010010 in binary):
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|state of the cell |1|1|1|1|0|0|0|0|
|sum of the neighbors' states |3|2|1|0|3|2|1|0|
|cell's next state |1|1|0|1|0|0|1|0|
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Rule 210 is easy to describe: "change the state of cells that have one 1 neighbor".
The second center column is the sequence of states of the direct neighbors of the initial 1 cell.
REFERENCES
Paul Cousin, "Triangular Automata: The 256 Elementary Cellular Automata of the 2D Plane", Complex Systems, 33(2), 2024.
LINKS
Paul Cousin, Triangular Automata.
Paul Cousin, Rule 210.
Paul Cousin, Rule 210 video.
CROSSREFS
Sequence in context: A117943 A285969 A189664 * A260446 A096268 A219097
KEYWORD
nonn
AUTHOR
Paul Cousin, Jul 08 2024
STATUS
approved