This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A160728 Toothpick cube: a(n) = A160408(n)*6. 1
 0, 6, 12, 24, 48, 72, 96, 120, 144, 192, 288, 384, 432, 456, 480, 528 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Also, 6 times the toothpick pyramid A160408. The sequence gives the number of toothpicks after n rounds. A160729 (the first differences) gives the number added at the n-th round. See also the entry A139250 for more information about the toothpick sequences. LINKS 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 Toothpick triangle: A160406. Toothpick pyramid: A160408. Cf. A139250, A139251, A160160, A160729. Sequence in context: A304938 A297107 A212116 * A229926 A082505 A091629 Adjacent sequences:  A160725 A160726 A160727 * A160729 A160730 A160731 KEYWORD more,nonn AUTHOR Omar E. Pol, Jun 06 2009 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.

Last modified January 16 21:37 EST 2019. Contains 319206 sequences. (Running on oeis4.)