Results 71 to 80 of about 123 (113)

Tribonacci and Tribonacci-Lucas hybrid numbers

International Journal of Contemporary Mathematical Sciences, 2019
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Inbreeding, pedigree size, and the most recent common ancestor of humanity. [PDF]

J Theor Biol, 2009
Lachance J.
europepmc   +1 more source

Enhancing image security via chaotic maps, Fibonacci, Tribonacci transformations, and DWT diffusion: a robust data encryption approach. [PDF]

Sci Rep
Hazzazi MM, Rehman MU, Shafique A, Aljaedi A, Bassfar Z, Usman AB.   +5 more
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Enumeration of structure-sensitive graphical subsets: Theory. [PDF]

Proc Natl Acad Sci U S A, 1981
Merrifield RE, Simmons HE.
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Bifocal diffractive lenses based on the aperiodic Kolakoski sequence. [PDF]

Sci Rep
Garmendía-Martínez A, Muñoz-Pérez FM, Furlan WD, Ferrando V, Monsoriu JA.   +4 more
europepmc   +1 more source

Image Privacy Protection Communication Scheme by Fibonacci Interleaved Diffusion and Non-Degenerate Discrete Chaos. [PDF]

Entropy (Basel)
Xie Z, Xie W, Cheng X, Yuan Z, Cheng W, Lin Y.   +5 more
europepmc   +1 more source

Multichannel speech enhancement for automatic speech recognition: a literature review. [PDF]

PeerJ Comput Sci
Zaland Z, Mustafa MB, Mat Kiah ML, Ting HN, Mohamed Yusoof MA, Mohd Don Z, Muthaiyah S.   +6 more
europepmc   +1 more source

On the Brocard--Ramanujan Equation with Tribonacci and Tetranacci Numbers

It is shown that the Brocard-Ramanujan equation \(m! + 1 = u^2\) has no integer solutions when \(u\) is a Tribonacci number. This investigation is motivated by a previously published incorrect proof in the work of \textit{V. Facó} and \textit{D. Marques} [J. Integer Seq. 19, No. 4, Article 16.4.4, 7 p. (2016; Zbl 1415.11028)].
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Tribonacci Numbers With Two Blocks of Repdigits

Mathematica Slovaca, 2021
AbstractThe Tribonacci sequence is a generalization of the Fibonacci sequence which starts with 0,0,1 and each term afterwards is the sum of the three preceding terms. Here, we show that the only Tribonacci numbers that are concatenations of two repdigits are 13,24,44,81.
Jhon Jairo Bravo Grijalba, Eric Fernando Bravo   +1 more
exaly   +3 more sources

Identities Involving Tribonacci Numbers

Journal of the Chungcheng Mathematical Society, 2015
The kt + r subscripted tribonacci numbers will be ex- pressed by three k step apart tribonacci numbers for any 0 < r < k 2Z.
Eunmi Choi, Jiin Jo
exaly   +3 more sources