Question

Find a formula for sn, n ≥ 1.
(1/5), (2/7), (6/9), (24/11), (120/13), (720/15)

Answer 1

\[sn = (n! / (3+2n))\]

Answer 2

how did you find it

Answer 3

If the numerator and denominator don't seem to have any relation you have to look at them separately.

As you can see, the numerator is a simple factorial and the denominator a linear equation.

Answer 4

thanks