Authors: NEŞE ÖMÜR, SİBEL KOPARAL, LAID ELKHIRI

Abstract: In this paper, we establish some congruences involving the trinomial coefficients and harmonic numbers. For example, for any prime $p>3,$ \begin{equation*} \sum\limits_{k=0}^{p-1}\left( -1\right) ^{k}\binom{p-1}{k}_{2}H_{k}\equiv 0 \ \pmod {p}. \end{equation*}

Keywords: Congruences, binomial coefficients, trinomial coefficients, harmonic numbers

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