Starting with the number 3, build a sequence of 5 numbers.

Answer 1

A sequence is a set of numbers E.g. {1,2,3,4,5,...} can be written as {a_n} where a_n=n for n in the natural number set.

In this case, you could take whatever you like starting at 3 to create a pattern

{(1)(3), (2)(3), (3)(3), (4)(3), (5)(3)...} = {3,6,9,12,15...} = {3n} for n={1,2,3,4...}

Thus, your sequence of 5 terms is a_n=3n for n in [1,5].