All arithmetic sequences are of the form a, a+d, a+2d, a+3d, etc., so a formula for the the term t(n)=a+(n-1)d where a is the first term (n=1, t(1)=a) and d is the common difference. Therefore t(8)=164=a+7d. And t(13)=a+12d=300. 300-164=5d. 5d=136, d=136/5=27.2, making a=164-7(27.2)=164-190.4=-26.4. t(n)=-26.4+27.2n. The gradient (slope) is (300-164)/(13-8) or (300-164)/(12-7)=27.2 (=d) and not 22. So it is not possible to fit all these conditions.