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 A191255 Fixed point of the morphism 0 -> 01, 1 -> 02, 2 -> 03, 3 -> 01. 6
 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS See A191250. LINKS FORMULA a(n) = 0 for odd n; a(n) == A007814(n) (mod 3) for even n. - Jianing Song, Sep 21 2018 MATHEMATICA t = Nest[Flatten[# /. {0 -> {0, 1}, 1 -> {0, 2}, 2 -> {0, 3}, 3 -> {0, 1}}] &, {0}, 9] (* A191255 *) Flatten[Position[t, 0]] (* A005408, the odds *) a = Flatten[Position[t, 1]] (* A067368 *) b = Flatten[Position[t, 2]] (* A213258 *) a/2  (* A191257 *) b/4  (* a/2 *) CROSSREFS Cf. A191250. Positions of 0 or 3: A191257; positions of 1: A067368; positions of 2: A213258. Sequence in context: A276424 A191258 A254990 * A007814 A265330 A272216 Adjacent sequences:  A191252 A191253 A191254 * A191256 A191257 A191258 KEYWORD nonn AUTHOR Clark Kimberling, May 28 2011 STATUS approved

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Last modified November 17 01:58 EST 2018. Contains 317275 sequences. (Running on oeis4.)