The Geometry of some Fibonacci Identities in the Hosoya Triangle

Primes and composites in the determinant Hosoya triangle

In this paper, we look at numbers of the form $H_{r,k}:=F_{k-1}F_{r-k+2}+F_{k}F_{r-k}$. These numbers are the entries of a triangular array called the \emph{determinant Hosoya triangle} which we denote by ${\mathcal H}$. We discuss the divisibility properties of the above numbers and their primality. We give a small sieve of primes to illustrate the density of prime numbers in ${\mathcal H}$. Since the Fibonacci and Lucas numbers appear as entries in ${\mathcal H}$, our research is an extension of the classical questions concerning whether there are infinitely many Fibonacci or Lucas primes. W…

列对齐杨辉三角形和Fibonacci序列的矩阵幂

Matrix Powers of Column-Justified Pascal Triangles and Fibonacci Sequences

如果L和R分别是元素为binom{i-1，j-1}和binom{i-1，n-j}的矩阵，则已知L^2 = I（mod 2），R^3 = I（mod 2），其中I是n维> 1的单位矩阵（参见P10735- 1999年5月的《美国数学月刊》）。我们将它推广到任何素数p，并给出了一个美丽的连接到斐波那契数。

与帕斯卡三角和斐波那契数列相关的三对角实对称矩阵

Tridiagonal real symmetric matrices with a connection to Pascal's triangle and the Fibonacci sequence

本研究推导了一类三对角实对称矩阵特征多项式的三项递推关系与闭式解，揭示其系数与帕斯卡三角对角元的关联，给出特征值包含关系的充分条件，并提出关联斐波那契数列的开放问题。

Andrews恒等式的推广

Generalization of an Identity of Andrews

我们考虑一个由G. G发现的将斐波那契数与帕斯卡三角形联系起来的恒等式。E.安德鲁斯几位作者提供了证明这一身份，他们都相当参与或依赖于复杂的数论参数。不仅给出了一个简单初等的证明，而且证明了该恒等式推广到了Pascal三角形以外的数组。作为应用，我们得到的身份三项式系数和加泰罗尼亚的三角形斐波那契数。

斐波那契-富比尼数与卢卡斯-富比尼数

The Fibonacci-Fubini and Lucas-Fubini numbers

本文通过将有序贝尔数中的划分块按斐波那契方式排列，引入斐波那契-富比尼数，并研究其生成函数、显式公式、组合解释及算术三角形，同时揭示其与斯特林数的联系。

A Conjecture concerning the Fibonomial Triangle

The fibonomial triangle has been shown by Chen and Sagan to have a fractal nature mod 2 and 3. Both these primes have the property that the Fibonacci entry point of $p$ is $p+1$. We study the fibonomial triangle mod 5, showing with a theorem of Knuth and Wilf that the triangle has a recurring structure under divisibility by five. While this result is not new, our method of proof is new and suggests a conjecture for the divisibility of a fibonomial coefficient by a general prime $p$. We give necessary conditions for such primes, namely that the Fibonacci entry point must be greater than or equa…