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A118111 Binary representation of n-th iteration of the Rule 190 elementary cellular automaton starting with a single black cell. 5
1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Row n has length 2*n+1. - Hans Havermann, May 26 2002

LINKS

Robert Price, Table of n, a(n) for n = 0..9999

Eric Weisstein's World of Mathematics, Rule 190

Eric Weisstein's World of Mathematics, Elementary Cellular Automaton

S. Wolfram, A New Kind of Science

Index entries for sequences related to cellular automata

Index to Elementary Cellular Automata

EXAMPLE

From Michael De Vlieger, Aug 21 2020: (Start)

Irregular array begins:

0: 1

1: 1 1 1

2: 1 1 1 0 1

3: 1 1 1 0 1 1 1

4: 1 1 1 0 1 1 1 0 1

5: 1 1 1 0 1 1 1 0 1 1 1

6: 1 1 1 0 1 1 1 0 1 1 1 0 1

7: 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1

8: 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1

9: 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1 1 1

... (End)

MATHEMATICA

With[{nn = 9}, MapIndexed[#1[[#2 + 1 ;; 2 nn - #2 + 1]] & @@ {#1, nn - First[#2] + 1} &, CellularAutomaton[190, {{1}, 0}, nn]]] // Flatten (* Michael De Vlieger, Aug 21 2020 *)

CROSSREFS

Cf. A265688 (binary rows), A037576 (decimal rows), A032766 (num 1's).

Sequence in context: A071037 A118172 A071039 * A305940 A119981 A115789

Adjacent sequences: A118108 A118109 A118110 * A118112 A118113 A118114

KEYWORD

nonn,tabf

AUTHOR

Eric W. Weisstein, Apr 13 2006

STATUS

approved

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Last modified December 5 02:30 EST 2022. Contains 358572 sequences. (Running on oeis4.)