OFFSET
0,3
COMMENTS
Number of L-toothpicks added to the L-toothpick structure of A172310 at the n-th stage.
LINKS
David Applegate, The movie version
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
KEYWORD
nonn
AUTHOR
Omar E. Pol, Jan 31 2010
EXTENSIONS
More terms from Nathaniel Johnston, Nov 15 2010
Corrected by David Applegate and Omar E. Pol; more terms beyond a(22) from David Applegate, Mar 26 2016
STATUS
approved