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A283316 Image of 0 under repeated applications of the morphism 0 -> 0,0,0,1, 1 -> 1,1,1,0. 6
0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

LINKS

Table of n, a(n) for n=1..101.

MAPLE

with(ListTools);

psi:=proc(S)

Flatten(subs( {0=[0, 0, 0, 1], 1=[1, 1, 1, 0]}, S));

end;

S:=[0];

for n from 1 to 6 do S:=psi(S): od:

S;

MATHEMATICA

SubstitutionSystem[{0 -> {0, 0, 0, 1}, 1 -> {1, 1, 1, 0}}, {0}, 4] // Last (* Jean-Fran├žois Alcover, Jan 21 2018 *)

CROSSREFS

Suggested by A283317.

Sequence in context: A144602 A275855 A268310 * A284508 A160351 A268340

Adjacent sequences:  A283313 A283314 A283315 * A283317 A283318 A283319

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 08 2017

STATUS

approved

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Last modified March 5 10:23 EST 2021. Contains 341822 sequences. (Running on oeis4.)