Find at least three different sequences beginning with the terms 1, 2, 4 whose terms are generated by a simple formula or rule.

Step1

Given that

We have to find at least three different sequences whose terms are generated by a simple formula or rule and beginning with the terms 1, 2, 4.

Step2

Three different sequences beginning with the terms 1, 2, 4

First rule:-

where n=1,2,3,.....

Therefore,sequence:- 1,2,4,7,11,16…..

Step3

Second...