0,2

Table of n, a(n) for n=0..55.

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

Sequence in context: A264234 A056916 A139628 * A123142 A122097 A073400

Adjacent sequences: A170869 A170870 A170871 * A170873 A170874 A170875

nonn

N. J. A. Sloane, Jan 02 2010

approved