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In this paper, the concept of an $N_{\theta}^{2}$ quasi-Cauchy sequence isintroduced. We proved interesting theorems related to$N_{\theta}^{2}$-quasi-Cauchy sequences. A real valued function $f$ defined ona subset $A$ of $\mathbb{R}$, the set of real numbers, is $N_{\theta}^{2}$ wardcontinuous on $A$ if it preserves $N_{\theta}^{2}$ quasi-Cauchy sequences ofpoints in $A$, i.e. $(f( \alpha_{k}))$ is an $N_{\theta}^{2}$ quasi-Cauchysequence whenever $(\alpha_{k})$ is an $N_{\theta}^{2}$ quasi-Cauchy sequencesof points in $A$, where a sequence $(\alpha_{k})$ is called $N_{\theta}^{2}$quasi-Cauchy if $(\Delta^{2} \alpha_{k})$ is an $N_{\theta}$ quasi-Cauchysequence where $\Delta^{2}\alpha_{k}=\alpha_{k+2}-2\alpha_{k+1}+\alpha_{k}$ foreach positive integer $k$.

A new study on the strongly lacunary quasi Cauchyness