login
This site is supported by donations to The OEIS Foundation.

 

Logo

The OEIS is looking to hire part-time people to help edit core sequences, upload scanned documents, process citations, fix broken links, etc. - Neil Sloane, njasloane@gmail.com

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A071033 a(n) = n-th state of cellular automaton generated by "Rule 94" when started with a single ON cell. 3
1, 111, 11011, 1110111, 110101011, 11101010111, 1101010101011, 111010101010111, 11010101010101011 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

a(n) has length 2n+1.

REFERENCES

S. Wolfram, A New Kind of Science, Wolfram Media, 2002; Chapter 3.

LINKS

Robert Price, Table of n, a(n) for n = 0..999

E. W. Weisstein, Rule 94, MathWorld.

S. Wolfram, A New Kind of Science

Index to Elementary Cellular Automata

Index entries for sequences related to cellular automata

MATHEMATICA

rule=94; rows=20; ca=CellularAutomaton[rule, {{1}, 0}, rows-1, {All, All}]; (* Start with single black cell *) catri=Table[Take[ca[[k]], {rows-k+1, rows+k-1}], {k, 1, rows}]; (* Truncated list of each row *) Table[FromDigits[catri[[k]]], {k, 1, rows}]   (* Binary Representation of Rows *) (* Robert Price, Feb 21 2016 *)

CROSSREFS

This sequence, A118101 and A118102 are equivalent descriptions of the Rule 94 automaton.

Sequence in context: A266809 A152764 A249183 * A267364 A265379 A265688

Adjacent sequences:  A071030 A071031 A071032 * A071034 A071035 A071036

KEYWORD

nonn,more

AUTHOR

Hans Havermann, May 26 2002

EXTENSIONS

Corrected by Hans Havermann, Jan 07 2012.

Edited by N. J. A. Sloane, Oct 20 2015 at the suggestion of Michael De Vlieger and _Kevin Ryde_.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified May 29 01:07 EDT 2017. Contains 287241 sequences.