Write first five terms of the sequence `{t_n}` if `t_n=2n^2-n+1`

Write first five terms of the sequence {t_n} if t_n=(n(n+1)(2n+1))/6

Write first five terms of the sequence {t_n} if t_n=(-1)^(n-1)/n^3

Find t_n if first four terms of the sequence {t_n} are 1,1/4,1/9,1/16,…

What is the 20th term of the sequence defined by a_n=(n-1)(2-n)(3+n) .

Find the first three terms of the sequences whose nth term are given below a_n=(-1)^(n-t) 5^t+1 .

Find the first three terms of the sequences whose nth term are given below a_n=n(n+1)/2

Find the first three terms of the sequences whose nth term are given below a_n=n/(n^2+1)

Find the first three terms of the sequences whose nth term are given below a_n=(n+2)/(n+1)

Find the first three terms of the sequences whose nth term are given below a_n={(1/n if (n) is even),(2/n if (n) is odd):}

Find the first three terms of the sequences whose nth term are given below a_n=(-1)^(n-1) 2^(n-1) .