Results 21 to 30 of about 161 (91)

Curious Generalized Fibonacci Numbers [PDF]

open access: yesMathematics, 2021
A generalization of the well-known Fibonacci sequence is the k−Fibonacci sequence whose first k terms are 0,…,0,1 and each term afterwards is the sum of the preceding k terms. In this paper, we find all k-Fibonacci numbers that are curious numbers (i.e.,
Jose L. Herrera   +2 more
doaj   +2 more sources

On Sierpiński and Riesel Repdigits and Repintegers [PDF]

open access: yes
For positive integers $b\geq 2 ...
Bispels, Chris   +6 more
core   +5 more sources

A Diophantine equation in $k$-Fibonacci numbers and repdigits [PDF]

open access: yesColloquium Mathematicum, 2018
Summary: The \(k\)-generalized Fibonacci sequence \(\{F_{n}^{(k)}\}_{n}\) starts with the \(k\) values \(0,\dots ,0,1\) and each term afterwards is the sum of the \(k\) preceding terms. We study which members of this sequence are sums of two repdigts, extending a result of \textit{S. Díaz Alvarado} and \textit{F. Luca} [Aportaciones Mat., Investig. 20,
Bravo, J.   +2 more
openaire   +6 more sources

Padovan numbers that are concatenations of two distinct repdigits [PDF]

open access: yesMathematica Slovaca, 2020
Abstract Let ( P n ) n ≥0 be the sequence of Padovan numbers defined by P
Ddamulira, M.
openaire   +7 more sources

Tribonacci numbers that are concatenations of two repdigits. [PDF]

open access: yesRev R Acad Cienc Exactas Fis Nat A Mat, 2020
Let $ (T_{n})_{n\ge 0} $ be the sequence of Tribonacci numbers defined by $ T_0=0 $, $ T_1=T_2=1$, and $ T_{n+3}= T_{n+2}+T_{n+1} +T_n$ for all $ n\ge 0 $. In this note, we use of lower bounds for linear forms in logarithms of algebraic numbers and the Baker-Davenport reduction procedure to find all Tribonacci numbers that are concatenations of two ...
Ddamulira M.
europepmc   +6 more sources

Lucas numbers as sums of two repdigits [PDF]

open access: yesLithuanian Mathematical Journal, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adegbindin, Chèfiath   +2 more
openaire   +3 more sources

Repdigits as sums of three Fibonacci numbers [PDF]

open access: yesMathematical Communications, 2012
In this paper, we find all base 10 repdigits which are sums of three Fibonacci numbers.
Luca, Florian, Florian Luca
openaire   +3 more sources

Repdigits in generalized Pell sequences [PDF]

open access: yesArchivum Mathematicum, 2020
In this paper, the authors study the \(k\)-generalized Pell sequence, which starts with \(0,\ldots,0,1\) and satisfies the recurrence \(P_n^{(k)}=2P_{n-1}^{(k)}+P_{n-2}^{(k)}+\cdots+P_{n-k}^{(k)}\). They find all \(k\)-generalized Pell numbers which are repdigits, namely \(P_5^{(3)}=33\) and \(P_6^{(4)}=88\).
Bravo, Jhon J., Herrera, Jose L.
openaire   +2 more sources

Padovan numbers as difference of two repdigits [PDF]

open access: yes, 2023
In this paper, we find all Padovan numbers which can be written as are difference of two repdigits. It is shown that all Padovan numbers which can be written as a difference of two repdigits are P-k is an element of {2, 3, 4, 5, 7, 9, 12, 16, 21, 28, 37,

core   +1 more source

k-generalized Fibonacci numbers which are concatenations of two repdigits [PDF]

open access: yes, 2021
We show that the k-generalized Fibonacci numbers that are concatenations of two repdigits have at most four ...
Alahmadi, Adel   +7 more
core   +2 more sources

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