A340503 -id:A340503

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A340504

Fixed under 0 -> 03, 1 -> 23, 2 -> 21, 3 -> 01.

+10
1

0, 3, 0, 1, 0, 3, 2, 3, 0, 3, 0, 1, 2, 1, 0, 1, 0, 3, 0, 1, 0, 3, 2, 3, 2, 1, 2, 3, 0, 3, 2, 3, 0, 3, 0, 1, 0, 3, 2, 3, 0, 3, 0, 1, 2, 1, 0, 1, 2, 1, 2, 3, 2, 1, 0, 1, 0, 3, 0, 1, 2, 1, 0, 1, 0, 3, 0, 1, 0, 3, 2, 3, 0, 3, 0, 1, 2, 1, 0, 1, 0, 3, 0, 1, 0, 3, 2, 3, 2, 1, 2, 3, 0, 3, 2, 3, 2, 1, 2, 3, 2, 1, 0, 1, 2

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Yet another version of the Rudin-Shapiro sequence A020987.

REFERENCES

Dekking, Michel, Michel Mendes France, and Alf van der Poorten. "Folds." The Mathematical Intelligencer, 4.3 (1982): 130-138 & front cover, and 4:4 (1982): 173-181 (printed in two parts). See Observation 1.17.

LINKS

Table of n, a(n) for n=1..105.

CROSSREFS

Cf. A020985, A020987, A100260, A340503.

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 17 2021

STATUS

approved

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