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 A282470 Q-toothpick sequence with Q-toothpicks of radius 1 and 2 (see Comments for precise definition). 1
 0, 1, 9, 16, 40, 62, 102, 124, 204, 258, 338, 360, 440, 494, 606, 676, 916, 1050, 1194, 1216, 1296, 1350, 1462, 1532, 1772, 1906, 2082, 2152, 2392, 2542, 2878, 3124, 3844, 4170, 4442, 4464, 4544, 4598, 4710, 4780, 5020, 5154, 5330, 5400, 5640, 5790, 6126, 6372, 7092, 7418, 7722, 7792, 8032, 8182, 8518 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS For the construction of this sequence we use the same the rules of A187210 (the Q-toothpick sequence) except that for the even-indexed generations here we use Q-toothpicks of radius 2, not 1. The result is that the structure looks like an arrangement of ovals. On the infinite square grid at stage 0 we start with no Q-toothpicks, so a(0) = 0. For n >= 1, a(n) is the ratio between the total length of the lines of the structure after n-th stages and the length of a single Q-toothpick of radius 1. A187210(n) gives the total number of Q-toothpicks in the structure after n-th stages. A187211(n) gives the number of Q-toothpicks added at n-th stage. Note that since the radius of the Q-toothpicks can be two distincts numbers so we can write an infinite number of sequences from cellular automata of this kind. LINKS Table of n, a(n) for n=0..54. N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS Index entries for sequences related to cellular automata CROSSREFS Cf. A282471 (essentially the first differences). Cf. A187210 (Q-toothpick sequence). Cf. A139250, A187212, A267694, A267698. Sequence in context: A221856 A309273 A358627 * A067956 A270757 A203595 Adjacent sequences: A282467 A282468 A282469 * A282471 A282472 A282473 KEYWORD nonn AUTHOR Omar E. Pol, Feb 16 2017 STATUS approved

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Last modified May 31 22:18 EDT 2023. Contains 363068 sequences. (Running on oeis4.)