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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A151836 First differences of A147552. 3
1, 4, 4, 12, 4, 12, 12, 28, 4, 12, 12, 28, 20, 28, 36, 68, 4, 12, 12, 28, 20, 28, 36, 68, 36, 28, 36, 68, 68, 76, 100, 172, 12, 28, 12, 28, 20, 28, 36, 68, 36, 28, 36, 68, 68, 76, 100, 172, 76, 28, 36, 68, 68, 76 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..54.

David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, 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.]

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

CROSSREFS

Cf. A139250, A147552, A151837, A160721.

Sequence in context: A273452 A178182 A160721 * A147582 A162793 A269568

Adjacent sequences:  A151833 A151834 A151835 * A151837 A151838 A151839

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 13 2009

EXTENSIONS

Terms after a(30) from Nathaniel Johnston, Mar 27 2011

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 October 18 07:35 EDT 2019. Contains 328146 sequences. (Running on oeis4.)