The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A269177 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A269177

Numbers that have a finite predecessor in Wolfram's Rule 124 cellular automaton; numbers n for which A269175(n) > 0.
(history; published version)

#7 by N. J. A. Sloane at Tue Feb 23 12:09:14 EST 2016

STATUS

proposed

approved

#6 by Antti Karttunen at Mon Feb 22 11:40:56 EST 2016

STATUS

editing

proposed

Discussion

Mon Feb 22

12:06

Michel Marcus: Could xref existing sequences that concern Rule 124 ?

13:00

Antti Karttunen: You mean adding all Rule124-related seq-nums here?
(I thought A26174 would be a good central relay for that!)

#5 by Antti Karttunen at Mon Feb 22 11:01:47 EST 2016

LINKS

Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ElementaryCellularAutomaton.html">Elementary Cellular Automaton</a>

S. Wolfram, <a href="http://wolframscience.com/">A New Kind of Science</a>

<a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a>

<a href="https://oeis.org/wiki/Index_to_Elementary_Cellular_Automata">Index to Elementary Cellular Automata</a>

STATUS

proposed

editing

#4 by Antti Karttunen at Mon Feb 22 10:15:27 EST 2016

STATUS

editing

proposed

#3 by Antti Karttunen at Mon Feb 22 10:02:22 EST 2016

NAME

Numbers which that have a finite predecessor in Wolfram's Rule 124 cellular automaton; numbers n for which A269175(n) > 0.

LINKS

Antti Karttunen, <a href="/A269177/b269177.txt">Table of n, a(n) for n = 0..8940</a>

#2 by Antti Karttunen at Mon Feb 22 07:36:45 EST 2016

NAME

allocated Numbers which have a finite predecessor in Wolfram's Rule 124 cellular automaton; numbers n for Antti Karttunenwhich A269175(n) > 0.

DATA

0, 3, 6, 7, 11, 12, 14, 15, 19, 22, 24, 27, 28, 30, 31, 35, 38, 44, 47, 48, 51, 54, 55, 56, 59, 60, 62, 63, 67, 70, 76, 79, 88, 91, 94, 95, 96, 99, 102, 103, 107, 108, 110, 111, 112, 115, 118, 119, 120, 123, 124, 126, 127, 131, 134, 140, 143, 152, 155, 158, 159, 176, 179, 182, 183, 187, 188, 190, 191, 192, 195

OFFSET

0,2

COMMENTS

Sequence A269174 sorted into ascending order with duplicates removed.

The indexing starts from zero, because a(0) = 0 is a special case in this sequence. (Zero is the only number which is its own predecessor).

PROG

(Scheme, with Antti Karttunen's IntSeq-library)

(define A269177 (NONZERO-POS 0 0 A269175))

CROSSREFS

Cf. A269174, A269175.

Cf. A269176 (complement).

Cf. A269178 (a subsequence).

KEYWORD

allocated

nonn

AUTHOR

Antti Karttunen, Feb 22 2016

STATUS

approved

editing

#1 by Antti Karttunen at Sat Feb 20 08:50:24 EST 2016

NAME

allocated for Antti Karttunen

KEYWORD

allocated

STATUS

approved