A320581 - OEIS

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A320581

a(n) is the number of closed factors of length n in the Fibonacci word.

0

2, 1, 2, 3, 4, 3, 4, 5, 6, 5, 6, 7, 8, 9, 10

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

Olga Parshina, Luca Zamboni, Open and closed factors of Arnoux-Rauzy words, arXiv:1810.05472 [math.CO], 2018. See Example 2.7 p. 7.

CROSSREFS

Cf. A003849 (Fibonacci word).

Sequence in context: A285869 A162330 A134967 * A240855 A084612 A295164

Adjacent sequences: A320578 A320579 A320580 * A320582 A320583 A320584

KEYWORD

nonn,more

AUTHOR

Michel Marcus, Oct 16 2018

STATUS

approved