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Table of n, a(n) for n=1..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
Cf. A139250, A139251.
Sequence in context: A051555 A187891 A086407 * A215337 A090124 A097943
Adjacent sequences: A160424 A160425 A160426 * A160428 A160429 A160430
Omar E. Pol, May 25 2009
Terms after a(13) from Nathaniel Johnston, Mar 31 2011