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 A059835 Form triangle as follows: start with three single digits: 0, 1, 2. Each succeeding row is a concatenation of the previous three rows. 1
 0, 1, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2, 0, 1, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2, 0, 1, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2, 0, 1, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2, 0, 1, 2, 1, 2, 0, 1, 2, 2, 0, 1, 2, 1, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Trajectory of 0 under the morphism 0 -> 1, 1-> 2, 2 -> 012. - Robert G. Wilson v, May 20 2014 The sequence of row lengths is A000213. - Michael Somos, May 22 2014 REFERENCES C. Pickover, Wonders of Numbers, Oxford University Press, NY, 2001, p. 273. LINKS C. A. Pickover, "Wonders of Numbers, Adventures in Mathematics, Mind and Meaning," Zentralblatt review FORMULA a(n) = A059832(n) - 1. - Sean A. Irvine, Oct 11 2022 EXAMPLE Triangle begins: 0 1 2 0 1 2 1 2 0 1 2 2 0 1 2 1 2 0 1 2 ... MAPLE T:= proc(n) option remember; `if`(n<3, n, seq(T(i), i=n-3..n-1)) end: seq(T(n), n=0..10); # Alois P. Heinz, May 22 2014 MATHEMATICA NestList[ Flatten[# /. {0 -> {1}, 1 -> {2}, 2 -> {0, 1, 2}}] &, {0}, 8] // Flatten (* Robert G. Wilson v, May 20 2014 *) CROSSREFS Cf. A059832. Sequence in context: A029298 A262520 A351074 * A274659 A274661 A225089 Adjacent sequences: A059832 A059833 A059834 * A059836 A059837 A059838 KEYWORD easy,nonn,tabf,base AUTHOR Jason Earls, Feb 25 2001 EXTENSIONS More terms from Larry Reeves (larryr(AT)acm.org), Feb 26 2001 STATUS approved

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Last modified January 29 13:51 EST 2023. Contains 359923 sequences. (Running on oeis4.)