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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
OFFSET
0,5
LINKS
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 arXiv, arXiv:1305.6395 [cs.FL], 2013-2014.
Gabriele Fici, Open and Closed Words, in Giovanni Pighizzini, ed., The Formal Language Theory Column, Bulletin of EATCS, 2017.
CROSSREFS
Cf. A297185.
Sequence in context: A168380 A335730 A308286 * A218871 A121569 A319213
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 28 2017
STATUS
approved