login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A267699 First differences of A267698. 3
0, 2, 4, 7, 12, 7, 12, 15, 20, 7, 12, 15, 20, 15, 28, 39, 36, 7, 12, 15, 20, 15, 28, 39, 36, 15 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Number of Q-toothpicks added at n-th stage in the Q-toothpick structure of A267698.

LINKS

Table of n, a(n) for n=0..25.

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

Index entries for sequences related to cellular automata

Index entries for sequences related to toothpick sequences

EXAMPLE

When the positive terms are written as an irregular triangle in which the row lengths are the terms of A011782 the sequence begins:

2;

4;

7, 12;

7, 12, 15, 20;

7, 12, 15, 20, 15, 28, 39, 36;

7, 12, 15, 20, 15, 28, 39, 36, 15,...

CROSSREFS

Cf. A011782, A187210, A187211, A267695, A267698.

Sequence in context: A058103 A346268 A097592 * A193841 A052474 A033054

Adjacent sequences: A267696 A267697 A267698 * A267700 A267701 A267702

KEYWORD

nonn,tabf,more

AUTHOR

Omar E. Pol, Apr 02 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 7 11:43 EST 2022. Contains 358656 sequences. (Running on oeis4.)