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 A161332 a(n) = A161331(n)/2. 1
 0, 1, 3, 3, 3, 9, 3, 9, 9, 9, 15, 9, 15, 21, 3, 9, 9, 15, 27, 15, 39, 21, 27, 39, 21, 33, 39, 9, 21, 21, 27, 45, 33, 63, 45, 45, 51, 33, 39, 45, 45, 45, 27, 33, 57, 39, 63, 63, 51, 51, 69, 51, 81, 51, 57, 81, 63, 81, 57, 51, 51, 63, 93, 93, 75, 69, 63 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Number of E-toothpicks added at n-th stage to the structure of A161334. - Omar E. Pol, Jan 07 2014 LINKS 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, A single E-toothpick รง N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS CROSSREFS Cf. A161330, A161331, A161334. Sequence in context: A180637 A201539 A223747 * A217547 A285583 A253358 Adjacent sequences:  A161329 A161330 A161331 * A161333 A161334 A161335 KEYWORD nonn AUTHOR Omar E. Pol, Jun 07 2009 EXTENSIONS More terms from Omar E. Pol, Jan 07 2014 STATUS approved

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Last modified January 20 03:32 EST 2019. Contains 319323 sequences. (Running on oeis4.)