[tex]n(n+1)=22952\\
n^2+n-22952=0\\
\Delta=1^2-4\cdot1\cdot(-22952)=91809\\
\sqrt{\Delta}=\sqrt{91809}=303\\
n_1=\frac{-1-303}{2\cdot1}=\frac{-304}{2}=-152\\
n_2=\frac{-1+303}{2\cdot1}=\frac{302}{2}=151\\\\
n_1+1=-152+1=-151\\
n_2+1=151+1=152[/tex]
Those numbers are -152 and -151 or 151 and 152.