login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A297184 Number of closed binary words of length n that are not privileged. 3
0, 0, 0, 0, 2, 4, 12, 20, 42, 76, 144, 256, 488, 892, 1672, 3092, 5798, 10856, 20512, 38652, 73344, 139212, 265312, 506464, 969552, 1858784, 3571368, 6871692, 13244040, 25558888, 49392068, 95555560, 185075058, 358812020, 696308312, 1352420168, 2628949868 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

REFERENCES

Gabriele Fici, Open and Closed Words, in Giovanni Pighizzini, ed., The Formal Language Theory Column, Bulletin of EATCS, 2017, http://bulletin.eatcs.org/index.php/beatcs/article/viewFile/508/497

LINKS

Table of n, a(n) for n=0..36.

G. Badkobeh, G. Fici, Z. Lipták, On the number of closed factors in a word, in A.-H. Dediu et al., eds., LATA 2015, LNCS 8977, 2015, pp. 381-390. Available at http://arxiv.org/abs/1305.6395

CROSSREFS

Equals A226452-A231208.

Cf. A297185.

Sequence in context: A166869 A168380 A308286 * A218871 A121569 A319213

Adjacent sequences:  A297181 A297182 A297183 * A297185 A297186 A297187

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 28 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 22 08:42 EST 2020. Contains 332133 sequences. (Running on oeis4.)