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 A372553 Center column of elementary triangular automaton rule 61, from a lone 1 cell. 4
 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1 (list; graph; refs; listen; history; text; internal format)
 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 61 (111101 in binary): ----------------------------------------------- |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 |0|0|1|1|1|1|0|1| ----------------------------------------------- REFERENCES Paul Cousin, "Triangular Automata: The 256 Elementary Cellular Automata of the 2D Plane", Complex Systems, 33(2), 2024. LINKS Paul Cousin, Table of n, a(n) for n = 0..4096 Paul Cousin, Triangular Automata: The 256 Elementary Cellular Automata of the 2D Plane, arXiv:2309.15795 [nlin.CG], 2023. Paul Cousin, Triangular Automata Paul Cousin, Rule 61 Paul Cousin, Triangular Automata Mathematica Package CROSSREFS Cf. A371844, A371931, A372552. Sequence in context: A214330 A335909 A266591 * A359779 A373834 A132194 Adjacent sequences: A372550 A372551 A372552 * A372554 A372555 A372556 KEYWORD nonn AUTHOR Paul Cousin, May 05 2024 STATUS approved

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Last modified July 18 13:04 EDT 2024. Contains 374378 sequences. (Running on oeis4.)