Abstract
In this paper we introduce a two-parameter generalization of the classical Jacobsthal numbers ((s,p)-Jacobsthal numbers). We present some properties of the presented sequence, among others Binet’s formula, Cassini’s identity, the generating function. Moreover, we give a graph interpretation of (s,p)-Jacobsthal numbers, related to independence in graphs.
Highlights
The Jacobsthal sequence {Jn} is defined by the second order linear recurrence (1)Jn = Jn−1 + 2Jn−2 for n ≥ 2 with J0 = 0, J1 = 1
In this paper we introduce a new generalization of the classical Jacobsthal numbers
We will describe the terms of the sequence {Jn(s, p)} explicitly by using a generalization of Binet’s formula
Summary
The Binet’s formula of this sequence has the following form Jacobsthal numbers, generalized Jacobsthal numbers, Binet’s formula, generating function, graph interpretation, Merrifield–Simmons index. We define (s, p)-Jacobsthal sequence {Jn(s, p)} by the following recurrence We will describe the terms of the sequence {Jn(s, p)} explicitly by using a generalization of Binet’s formula.
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