The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A160421

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First differences of A160420.
(history; published version)

#10 by N. J. A. Sloane at Wed Feb 24 02:48:18 EST 2021

LINKS

David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="http://neilsloane.com/docA000695/tootha000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]

Discussion

Wed Feb 24

02:48

OEIS Server: https://oeis.org/edit/global/2889

#9 by N. J. A. Sloane at Tue Nov 27 18:35:50 EST 2018

LINKS

David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="http://neilsloane.com/doc/tooth.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]

Discussion

Tue Nov 27

18:35

OEIS Server: https://oeis.org/edit/global/2774

#8 by Charles R Greathouse IV at Sat Sep 26 01:17:06 EDT 2015

LINKS

N. J. A. Sloane, <a href="http://neilsloane.com/docwiki/toothlist.htmlCatalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

Discussion

Sat Sep 26

01:17

OEIS Server: https://oeis.org/edit/global/2460

#7 by Charles R Greathouse IV at Thu Oct 04 10:29:04 EDT 2012

LINKS

David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="http://www.research.attneilsloane.com/~njas/doc/tooth.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>

N. J. A. Sloane, <a href="http://www.research.attneilsloane.com/~njas/doc/toothlist.html">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

Discussion

Thu Oct 04

10:29

OEIS Server: https://oeis.org/edit/global/1833

#6 by Russ Cox at Sat Mar 31 13:22:28 EDT 2012

EXTENSIONS

More terms from _Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), _, Nov 13 2010

Discussion

Sat Mar 31

13:22

OEIS Server: https://oeis.org/edit/global/888

#5 by Russ Cox at Fri Mar 30 17:33:59 EDT 2012

AUTHOR

_Omar E. Pol (info(AT)polprimos.com), _, Jun 01 2009

Discussion

Fri Mar 30

17:33

OEIS Server: https://oeis.org/edit/global/157

#4 by T. D. Noe at Sat Nov 13 14:34:00 EST 2010

STATUS

reviewed

approved

#3 by Ralf Stephan at Sat Nov 13 02:50:26 EST 2010

STATUS

proposed

reviewed

#2 by Nathaniel Johnston at Sat Nov 13 00:33:19 EST 2010

DATA

5, 8, 14, 14, 16, 28, 38, 26, 16, 28, 40, 44, 60, 92, 98, 50, 16, 28, 40, 44, 60, 92, 100, 68, 60, 96, 124, 148, 212, 280, 242, 98, 16, 28, 40, 44, 60, 92, 100, 68, 60, 96, 124, 148, 212, 280, 244, 116

KEYWORD

more,nonn,new

nonn

EXTENSIONS

More terms from Nathaniel Johnston (nathaniel(AT)nathanieljohnston.com), Nov 13 2010

STATUS

approved

proposed

#1 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

First differences of A160420.

DATA

5, 8, 14, 14, 16, 28

OFFSET

1,1

LINKS

David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="http://www.research.att.com/~njas/doc/tooth.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>

N. J. A. Sloane, <a href="http://www.research.att.com/~njas/doc/toothlist.html">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

CROSSREFS

Cf. A139250, A139251, A160420, A160422, A160423.

KEYWORD

more,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Jun 01 2009

STATUS

approved