Cryptographycal protocols in the Egerfood Information System. Liptai, Kálmán; Kusper, Gábor; Radványi, Tibor — 2007 Annales Mathematicae et Informaticae
On prime divisors of remarkable sequences. Filip, Ferdinánd; Liptai, Kálmán; Tóth, János — 2006 Annales Mathematicae et Informaticae
Lucas balancing numbers Kálmán Liptai — 2006 Acta Mathematica Universitatis Ostraviensis A positive n is called a balancing number if 1 + 2 + ⋯ + ( n - 1 ) = ( n + 1 ) + ( n + 2 ) + ⋯ + ( n + r ) . We prove that there is no balancing number which is a term of the Lucas sequence.