OFFSET
0,2
LINKS
Nathaniel Johnston, Table of n, a(n) for n = 0..274
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
Nathaniel Johnston, C script for computing table of terms
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, May 25 2009
EXTENSIONS
Terms after a(9) from Nathaniel Johnston, Mar 30 2011
STATUS
approved