Ünal Z., Tokeşer Ü., Bilgici G.Unal, Z, Tokeser, U, Bilgici, G2023-05-092023-05-092017-06-012017.01.010188-7009https://hdl.handle.net/20.500.12597/12402Halici (Adv Appl Clifford Algebr 25(4):905–914, 2015) defined dual Fibonacci and dual Lucas octonions by the relations Q~ n= Qn+ εQn+1 and P~ n= Pn+ εPn+1 for every integer n where Qn and Pn are the Fibonacci and Lucas octonions respectively, and ε is the dual unit. The aim of this paper is to investigate properties of dual Fibonacci and dual Lucas octonions. After obtaining the Binet formulas for the sequences {Q~n}n=0∞ and {P~n}n=0∞, we derive some identities for these sequences such as Catalan’s, Cassini’s and d’Ocagne’s identities.falseDual Fibonacci octonion | Dual Lucas octonion | Fibonacci sequence | Lucas sequenceArticle10.1007/s00006-016-0724-410.1007/s00006-016-0724-42-s2.0-84986270687WOS:00040166900006019071916271661-4909