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A092412 Fixed point of the morphism 0->11, 1->12, 2->13, 3->10, starting from a(1) = 1. 2
1, 2, 1, 3, 1, 2, 1, 0, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 0, 1, 2, 1, 3, 1, 2, 1, 2, 1, 2, 1, 3, 1, 2, 1, 0, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 0, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 0, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 1, 0, 1, 2, 1, 3, 1, 2, 1, 2, 1, 2, 1, 3, 1, 2, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..104.

Index entries for sequences that are fixed points of mappings

FORMULA

a(n) = A001511(n) mod 4.

a(2n+1) = 1; a(2n) = a(n) + 1 mod 4.

a(n) = A035263(n) mod 2; a(n) = A033485(n) mod 2.

MATHEMATICA

Nest[ Function[ l, {Flatten[(l /. {0 -> {1, 1}, 1 -> {1, 2}, 2 -> {1, 3}, 3 -> {1, 0}})] }], {0}, 7] (* Robert G. Wilson v, Mar 04 2005 *)

CROSSREFS

Sequence in context: A106406 A123864 A035175 * A265578 A279288 A078734

Adjacent sequences:  A092409 A092410 A092411 * A092413 A092414 A092415

KEYWORD

easy,nonn

AUTHOR

Philippe Deléham, Mar 22 2004

STATUS

approved

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Last modified October 20 15:14 EDT 2017. Contains 293612 sequences.