OFFSET
1,1
COMMENTS
LINKS
Jinyuan Wang, Table of n, a(n) for n = 1..1000
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, Aug 05 2009
EXTENSIONS
More terms from Nathaniel Johnston, Nov 15 2010
More terms from Jinyuan Wang, Mar 03 2020
STATUS
approved