So U_n 1n² where n is the ordinal number of the term. U_1 1 11 11². U_3 19 13².
35 th 35th term n 3 5.
T n an2 bn c T n a n 2 b n c It is important to note that the first differences of a. N i 1i2 nn 12n 1 6 However my question is that does i here has to be single term always. In other words we just add the same value each time. Thus the least value of n 1 there is no term before the 1st one or it would not be the first one.