A101661 - OEIS

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A101661

Fixed point of morphism 0 -> 01, 1 -> 02, 2 -> 20.

0, 1, 0, 2, 0, 1, 2, 0, 0, 1, 0, 2, 2, 0, 0, 1, 0, 1, 0, 2, 0, 1, 2, 0, 2, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 2, 0, 0, 1, 0, 2, 2, 0, 0, 1, 2, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 1, 2, 0, 0, 1, 0, 2, 0, 1, 2, 0, 0, 1, 0, 2, 2, 0, 0, 1, 0, 1, 0, 2, 0, 1, 2, 0, 2, 0, 0, 1, 0, 1, 0, 2, 2, 0, 0, 1, 0, 1, 0, 2, 0

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OFFSET

0,4

LINKS

Table of n, a(n) for n=0..104.

Index entries for sequences that are fixed points of mappings

FORMULA

a(2n) = 2[a(n)==2], a(2n+1) = (a(n)+1) mod 3.

MATHEMATICA

Nest[ Function[ l, {Flatten[(l /. {0 -> {0, 1}, 1 -> {0, 2}, 2 -> {2, 0}})]}], {0}, 7] (* Robert G. Wilson v, Mar 28 2005 *)

CROSSREFS

Sequence in context: A350594 A295859 A180160 * A322989 A322823 A334872

Adjacent sequences: A101658 A101659 A101660 * A101662 A101663 A101664

KEYWORD

nonn,easy

AUTHOR

Ralf Stephan, Dec 11 2004

STATUS

approved