In this paper, we prove several identities involving linear combinations of convolutions the generalized Fibonacci and Lucas sequences. Our results apply more generally to broader classes second-order linearly recurrent sequences with constant coefficients. As a consequence, obtain as special cases many relating exactly four amongst Fibonacci, Lucas, Pell, Pell–Lucas, Jacobsthal, Jacobsthal–Luc...

In this paper, we find a formula for the largest integer (p-Frobenius number) such that linear equation of non-negative coefficients composed Jacobsthal triplet has at most p representations. For p=0, problem is reduced to famous Diophantine Frobenius, which called Frobenius number. We also give closed number integers (p-genus), equations have Extensions polynomial and Jacobsthal–Lucas more gen...

The Jacobsthal function has aroused interest in various contexts in the past decades. We review several algorithmic ideas for the computation of Jacobsthal’s function for primorial numbers and discuss their practicability regarding computational effort. The respective function values were computed for primes up to 251. In addition to the results including previously unknown data, we provide exh...

Circulant matrix family occurs in various fields, applied in image processing, communications, signal processing, encoding and preconditioner. Meanwhile, the circulant matrices [1, 2] have been extended in many directions recently. The f(x)-circulant matrix is another natural extension of the research category, please refer to [3, 11]. Recently, some authors researched the circulant type matric...