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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A269177 Numbers that have a finite predecessor in Wolfram's Rule 124 cellular automaton; numbers n for which A269175(n) > 0. 5
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 (list; graph; refs; listen; history; text; internal format)
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).

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..8940

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

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).

Sequence in context: A022544 A194366 A091067 * A269178 A120511 A176864

Adjacent sequences:  A269174 A269175 A269176 * A269178 A269179 A269180

KEYWORD

nonn

AUTHOR

Antti Karttunen, Feb 22 2016

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 26 22:57 EDT 2019. Contains 323597 sequences. (Running on oeis4.)